<?xml version="1.0"?>
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	<id>https://www.k-wiki.kr/w/index.php?action=history&amp;feed=atom&amp;title=%EC%A7%84%EC%9E%90</id>
	<title>진자 - 편집 역사</title>
	<link rel="self" type="application/atom+xml" href="https://www.k-wiki.kr/w/index.php?action=history&amp;feed=atom&amp;title=%EC%A7%84%EC%9E%90"/>
	<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;action=history"/>
	<updated>2026-05-12T18:03:09Z</updated>
	<subtitle>이 문서의 편집 역사</subtitle>
	<generator>MediaWiki 1.45.1</generator>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2670921&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 단진자 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2670921&amp;oldid=prev"/>
		<updated>2021-05-19T02:08:55Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;단진자 풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 5월 19일 (수) 11:08 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;ko&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(차이 없음)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=101099&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 단진자 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=101099&amp;oldid=prev"/>
		<updated>2021-05-19T02:08:55Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;단진자 풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 5월 19일 (수) 11:08 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l14&quot;&gt;14번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;14번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 단진자 풀이 ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 단진자 풀이 ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;먼저 각진동수 {{수학|&#039;&#039;ω&#039;&#039; {{=}} {{제곱근|{{수직분수|&#039;&#039;g&#039;&#039;|&#039;&#039;l&#039;&#039;}}}}}}를 정의해 방정식을&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;먼저 각진동수 {{수학|&#039;&#039;ω&#039;&#039; {{=}} {{제곱근&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|&lt;/ins&gt;|{{수직분수|&#039;&#039;g&#039;&#039;|&#039;&#039;l&#039;&#039;}}}}}}를 정의해 방정식을&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{수직분수|d²&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;²}} {{=}} -&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;² sin &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{수직분수|d²&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;²}} {{=}} -&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;² sin &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이렇게 보기 좋도록 정리하자.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이렇게 보기 좋도록 정리하자.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671002&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 단진자 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671002&amp;oldid=prev"/>
		<updated>2021-05-04T23:00:34Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;단진자 풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 5월 5일 (수) 08:00 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l22&quot;&gt;22번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;22번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이며 양변을 적분하면&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이며 양변을 적분하면&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|({{수직분수|d&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;}})² {{=}} 2&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(cos &amp;#039;&amp;#039;θ&amp;#039;&amp;#039; - cos &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}})}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|({{수직분수|d&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;}})² {{=}} 2&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(cos &amp;#039;&amp;#039;θ&amp;#039;&amp;#039; - cos &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}})}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{=}} 4&#039;&#039;ω&#039;&#039;²(sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}} - sin² {{수직분수|&#039;&#039;θ&#039;&#039;|2}})}}이 됨.(&#039;&#039;θ&#039;&#039;{{아래첨자|0}}은 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;초기각도 &lt;/del&gt;ㅇㅇ)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{=}} 4&#039;&#039;ω&#039;&#039;²(sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}} - sin² {{수직분수|&#039;&#039;θ&#039;&#039;|2}})}}이 됨.(&#039;&#039;θ&#039;&#039;{{아래첨자|0}}은 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;최대각도 &lt;/ins&gt;ㅇㅇ)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;그 다음 양변에다 [[코서인]]² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}}를 곱한 뒤 {{수학|sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} {{=}} &amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}},  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;그 다음 양변에다 [[코서인]]² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}}를 곱한 뒤 {{수학|sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} {{=}} &amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}},  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671004&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 단진자 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671004&amp;oldid=prev"/>
		<updated>2021-04-22T10:34:23Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;단진자 풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 4월 22일 (목) 19:34 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot;&gt;13번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;13번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이다.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이다.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 풀이 ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;단진자 &lt;/ins&gt;풀이 ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;먼저 각진동수 {{수학|&amp;#039;&amp;#039;ω&amp;#039;&amp;#039; {{=}} {{제곱근|{{수직분수|&amp;#039;&amp;#039;g&amp;#039;&amp;#039;|&amp;#039;&amp;#039;l&amp;#039;&amp;#039;}}}}}}를 정의해 방정식을&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;먼저 각진동수 {{수학|&amp;#039;&amp;#039;ω&amp;#039;&amp;#039; {{=}} {{제곱근|{{수직분수|&amp;#039;&amp;#039;g&amp;#039;&amp;#039;|&amp;#039;&amp;#039;l&amp;#039;&amp;#039;}}}}}}를 정의해 방정식을&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{수직분수|d²&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;²}} {{=}} -&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;² sin &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{수직분수|d²&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;²}} {{=}} -&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;² sin &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671007&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671007&amp;oldid=prev"/>
		<updated>2021-04-22T10:27:58Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 4월 22일 (목) 19:27 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l25&quot;&gt;25번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;25번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;그 다음 양변에다 [[코서인]]² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}}를 곱한 뒤 {{수학|sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} {{=}} &amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}},  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;그 다음 양변에다 [[코서인]]² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}}를 곱한 뒤 {{수학|sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} {{=}} &amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}},  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|cos {{수직분수|&#039;&#039;θ&#039;&#039;|2}} d&#039;&#039;θ&#039;&#039; {{=}} 2d&#039;&#039;y&#039;&#039; sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}}}&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/del&gt;으로 치환하면 위 방정식은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|cos {{수직분수|&#039;&#039;θ&#039;&#039;|2}} d&#039;&#039;θ&#039;&#039; {{=}} 2d&#039;&#039;y&#039;&#039; sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}}} 으로 치환하면 위 방정식은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|({{수직분수|d&amp;#039;&amp;#039;y&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;}})² {{=}} &amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(1 - &amp;#039;&amp;#039;y&amp;#039;&amp;#039;²)(1 - &amp;#039;&amp;#039;y&amp;#039;&amp;#039;² sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}})}}으로 바뀜.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|({{수직분수|d&amp;#039;&amp;#039;y&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;}})² {{=}} &amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(1 - &amp;#039;&amp;#039;y&amp;#039;&amp;#039;²)(1 - &amp;#039;&amp;#039;y&amp;#039;&amp;#039;² sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}})}}으로 바뀜.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l33&quot;&gt;33번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;33번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  (단 &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}&amp;lt;180°)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  (단 &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}&amp;lt;180°)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;으로 나옴 ㅇㅇ 참고로 수식 간략화 할려고 t=0일때 가장 낮은 곳을 지나도록 잡았음.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;으로 나옴 ㅇㅇ 참고로 수식 간략화 할려고 t=0일때 가장 낮은 곳을 지나도록 잡았음.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;이에 따라 진자 주기는 {{수학|{{수직분수|4|&#039;&#039;ω&#039;&#039;}} &#039;&#039;K&#039;&#039; (sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}로 구해짐 ㅇ&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671010&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671010&amp;oldid=prev"/>
		<updated>2021-04-22T10:22:13Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 4월 22일 (목) 19:22 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l31&quot;&gt;31번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;31번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&amp;#039;&amp;#039;y&amp;#039;&amp;#039; {{=}} sn (&amp;#039;&amp;#039;ωt&amp;#039;&amp;#039;{{!}}sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}})}}로 구해지고 이걸 θ에 관해 정리하면&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&amp;#039;&amp;#039;y&amp;#039;&amp;#039; {{=}} sn (&amp;#039;&amp;#039;ωt&amp;#039;&amp;#039;{{!}}sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}})}}로 구해지고 이걸 θ에 관해 정리하면&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  {{수학|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039; {{=}} 2 Asin [sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}ㆍsn (&amp;#039;&amp;#039;ωt&amp;#039;&amp;#039;{{!}}sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}})]}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  {{수학|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039; {{=}} 2 Asin [sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}ㆍsn (&amp;#039;&amp;#039;ωt&amp;#039;&amp;#039;{{!}}sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}})]}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;으로 나옴 ㅇㅇ&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; (단 &#039;&#039;θ&#039;&#039;{{아래첨자|0}}&amp;lt;180°)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;으로 나옴 ㅇㅇ &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;참고로 수식 간략화 할려고 t=0일때 가장 낮은 곳을 지나도록 잡았음.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671013&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 풀이 */오타났네</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671013&amp;oldid=prev"/>
		<updated>2021-04-22T10:15:07Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;풀이: &lt;/span&gt;오타났네&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 4월 22일 (목) 19:15 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l22&quot;&gt;22번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;22번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이며 양변을 적분하면&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이며 양변을 적분하면&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|({{수직분수|d&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;}})² {{=}} 2&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(cos &amp;#039;&amp;#039;θ&amp;#039;&amp;#039; - cos &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}})}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|({{수직분수|d&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;}})² {{=}} 2&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(cos &amp;#039;&amp;#039;θ&amp;#039;&amp;#039; - cos &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}})}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{=}} &#039;&#039;ω&#039;&#039;²(sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}} - sin² {{수직분수|&#039;&#039;θ&#039;&#039;|2}})}}이 됨.(&#039;&#039;θ&#039;&#039;{{아래첨자|0}}은 초기각도 ㅇㅇ)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{=}} &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;4&lt;/ins&gt;&#039;&#039;ω&#039;&#039;²(sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}} - sin² {{수직분수|&#039;&#039;θ&#039;&#039;|2}})}}이 됨.(&#039;&#039;θ&#039;&#039;{{아래첨자|0}}은 초기각도 ㅇㅇ)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;그 다음 양변에다 [[코서인]]² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}}를 곱한 뒤 {{수학|sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} {{=}} &amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}},  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;그 다음 양변에다 [[코서인]]² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}}를 곱한 뒤 {{수학|sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} {{=}} &amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}},  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|cos {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} d&amp;#039;&amp;#039;θ&amp;#039;&amp;#039; {{=}} 2d&amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}}, 으로 치환하면 위 방정식은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|cos {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} d&amp;#039;&amp;#039;θ&amp;#039;&amp;#039; {{=}} 2d&amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}}, 으로 치환하면 위 방정식은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;4&lt;/del&gt;({{수직분수|d&#039;&#039;y&#039;&#039;|d&#039;&#039;t&#039;&#039;}})² {{=}} &#039;&#039;ω&#039;&#039;²(1 - &#039;&#039;y&#039;&#039;²)(1 - &#039;&#039;y&#039;&#039;² sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}으로 바뀜.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|({{수직분수|d&#039;&#039;y&#039;&#039;|d&#039;&#039;t&#039;&#039;}})² {{=}} &#039;&#039;ω&#039;&#039;²(1 - &#039;&#039;y&#039;&#039;²)(1 - &#039;&#039;y&#039;&#039;² sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}으로 바뀜.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;근데 이건 [[야코비 타원함수]] 미분방정식이니 y값은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;근데 이건 [[야코비 타원함수]] 미분방정식이니 y값은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&#039;&#039;y&#039;&#039; {{=}} sn (&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수직분수|&lt;/del&gt;&#039;&#039;ωt&#039;&#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|2}}&lt;/del&gt;{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}로 구해지고 이걸 θ에 관해 정리하면&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&#039;&#039;y&#039;&#039; {{=}} sn (&#039;&#039;ωt&#039;&#039;{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}로 구해지고 이걸 θ에 관해 정리하면&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  {{수학|&#039;&#039;θ&#039;&#039; {{=}} 2 Asin [sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}ㆍsn (&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수직분수|&lt;/del&gt;&#039;&#039;ωt&#039;&#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|2}}&lt;/del&gt;{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})]}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  {{수학|&#039;&#039;θ&#039;&#039; {{=}} 2 Asin [sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}ㆍsn (&#039;&#039;ωt&#039;&#039;{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})]}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;으로 나옴 ㅇㅇ&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;으로 나옴 ㅇㅇ&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671015&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671015&amp;oldid=prev"/>
		<updated>2021-04-22T10:07:12Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 4월 22일 (목) 19:07 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l14&quot;&gt;14번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;14번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 풀이 ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== 풀이 ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{미완성}}&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;먼저 각진동수 {{수학|&amp;#039;&amp;#039;ω&amp;#039;&amp;#039; {{=}} {{제곱근|{{수직분수|&amp;#039;&amp;#039;g&amp;#039;&amp;#039;|&amp;#039;&amp;#039;l&amp;#039;&amp;#039;}}}}}}를 정의해 방정식을&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;먼저 각진동수 {{수학|&amp;#039;&amp;#039;ω&amp;#039;&amp;#039; {{=}} {{제곱근|{{수직분수|&amp;#039;&amp;#039;g&amp;#039;&amp;#039;|&amp;#039;&amp;#039;l&amp;#039;&amp;#039;}}}}}}를 정의해 방정식을&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{수직분수|d²&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;²}} {{=}} -&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;² sin &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{수직분수|d²&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;²}} {{=}} -&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;² sin &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l30&quot;&gt;30번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;29번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;근데 이건 [[야코비 타원함수]] 미분방정식이니 y값은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;근데 이건 [[야코비 타원함수]] 미분방정식이니 y값은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&#039;&#039;y&#039;&#039; {{=}} sn ({{수직분수|&#039;&#039;ωt&#039;&#039;|2}}{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}로 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;구해지므로&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&#039;&#039;y&#039;&#039; {{=}} sn ({{수직분수|&#039;&#039;ωt&#039;&#039;|2}}{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}로 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;구해지고 이걸 θ에 관해 정리하면&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; {{수학|&#039;&#039;θ&#039;&#039; {{=}} 2 Asin [sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}ㆍsn ({{수직분수|&#039;&#039;ωt&#039;&#039;|2}}{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})]}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;으로 나옴 ㅇㅇ&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671018&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671018&amp;oldid=prev"/>
		<updated>2021-04-22T10:01:26Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 4월 22일 (목) 19:01 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l25&quot;&gt;25번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;25번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{=}} &amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}} - sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}})}}이 됨.(&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}은 초기각도 ㅇㅇ)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{=}} &amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}} - sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}})}}이 됨.(&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}은 초기각도 ㅇㅇ)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;그 다음 양변에다 [[코서인]]² &#039;&#039;θ&#039;&#039;를 곱한 뒤 {{수학|sin {{수직분수|&#039;&#039;θ&#039;&#039;|2}} {{=}} &#039;&#039;y&#039;&#039; sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}}},  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;그 다음 양변에다 [[코서인]]² &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수직분수|&lt;/ins&gt;&#039;&#039;θ&#039;&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|2}}&lt;/ins&gt;를 곱한 뒤 {{수학|sin {{수직분수|&#039;&#039;θ&#039;&#039;|2}} {{=}} &#039;&#039;y&#039;&#039; sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}}},  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|cos {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} d&amp;#039;&amp;#039;θ&amp;#039;&amp;#039; {{=}} 2d&amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}}, 으로 치환하면 위 방정식은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|cos {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|2}} d&amp;#039;&amp;#039;θ&amp;#039;&amp;#039; {{=}} 2d&amp;#039;&amp;#039;y&amp;#039;&amp;#039; sin {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}}}}, 으로 치환하면 위 방정식은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|4({{수직분수|d&amp;#039;&amp;#039;y&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;}})² {{=}} &amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(1 - &amp;#039;&amp;#039;y&amp;#039;&amp;#039;²)(1 - &amp;#039;&amp;#039;y&amp;#039;&amp;#039;² sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}})}}으로 바뀜.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|4({{수직분수|d&amp;#039;&amp;#039;y&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;}})² {{=}} &amp;#039;&amp;#039;ω&amp;#039;&amp;#039;²(1 - &amp;#039;&amp;#039;y&amp;#039;&amp;#039;²)(1 - &amp;#039;&amp;#039;y&amp;#039;&amp;#039;² sin² {{수직분수|&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;{{아래첨자|0}}|2}})}}으로 바뀜.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;근데 이건 [[야코비 타원함수]] 미분방정식이니 y값은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;근데 이건 [[야코비 타원함수]] 미분방정식이니 y값은&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&#039;&#039;y&#039;&#039; {{=}} sn ({{수직분수|&#039;&#039;ωt&#039;&#039;|2}}{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}로 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;구해지고&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|&#039;&#039;y&#039;&#039; {{=}} sn ({{수직분수|&#039;&#039;ωt&#039;&#039;|2}}{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}로 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;구해지므로&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
	<entry>
		<id>https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671021&amp;oldid=prev</id>
		<title>옛@달빛머리: /* 풀이 */</title>
		<link rel="alternate" type="text/html" href="https://www.k-wiki.kr/w/index.php?title=%EC%A7%84%EC%9E%90&amp;diff=2671021&amp;oldid=prev"/>
		<updated>2021-04-22T09:58:16Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;풀이&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2021년 4월 22일 (목) 18:58 판&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l17&quot;&gt;17번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;17번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;먼저 각진동수 {{수학|&amp;#039;&amp;#039;ω&amp;#039;&amp;#039; {{=}} {{제곱근|{{수직분수|&amp;#039;&amp;#039;g&amp;#039;&amp;#039;|&amp;#039;&amp;#039;l&amp;#039;&amp;#039;}}}}}}를 정의해 방정식을&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;먼저 각진동수 {{수학|&amp;#039;&amp;#039;ω&amp;#039;&amp;#039; {{=}} {{제곱근|{{수직분수|&amp;#039;&amp;#039;g&amp;#039;&amp;#039;|&amp;#039;&amp;#039;l&amp;#039;&amp;#039;}}}}}}를 정의해 방정식을&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{수직분수|d²&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;²}} {{=}} -&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;² sin &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{수학|{{수직분수|d²&amp;#039;&amp;#039;θ&amp;#039;&amp;#039;|d&amp;#039;&amp;#039;t&amp;#039;&amp;#039;²}} {{=}} -&amp;#039;&amp;#039;ω&amp;#039;&amp;#039;² sin &amp;#039;&amp;#039;θ&amp;#039;&amp;#039;}}&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이렇게 보기 좋도록 정리하자&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;이렇게 보기 좋도록 정리하자&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;이어서 양변에 {{수학|2ㆍ{{수직분수|d&#039;&#039;θ&#039;&#039;|d&#039;&#039;t&#039;&#039;}}}}를 곱하면&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수학|2ㆍ{{수직분수|d²&#039;&#039;θ&#039;&#039;|d&#039;&#039;t&#039;&#039;²}}ㆍ{{수직분수|d&#039;&#039;θ&#039;&#039;|d&#039;&#039;t&#039;&#039;}} {{=}} -2&#039;&#039;ω&#039;&#039;² sin &#039;&#039;θ&#039;&#039;ㆍ{{수직분수|d&#039;&#039;θ&#039;&#039;|d&#039;&#039;t&#039;&#039;}}}}&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;이며 양변을 적분하면&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수학|({{수직분수|d&#039;&#039;θ&#039;&#039;|d&#039;&#039;t&#039;&#039;}})² {{=}} 2&#039;&#039;ω&#039;&#039;²(cos &#039;&#039;θ&#039;&#039; - cos &#039;&#039;θ&#039;&#039;{{아래첨자|0}})}}&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수학|{{=}} &#039;&#039;ω&#039;&#039;²(sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}} - sin² {{수직분수|&#039;&#039;θ&#039;&#039;|2}})}}이 됨.(&#039;&#039;θ&#039;&#039;{{아래첨자|0}}은 초기각도 ㅇㅇ)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;그 다음 양변에다 [[코서인]]² &#039;&#039;θ&#039;&#039;를 곱한 뒤 {{수학|sin {{수직분수|&#039;&#039;θ&#039;&#039;|2}} {{=}} &#039;&#039;y&#039;&#039; sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}}}, &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수학|cos {{수직분수|&#039;&#039;θ&#039;&#039;|2}} d&#039;&#039;θ&#039;&#039; {{=}} 2d&#039;&#039;y&#039;&#039; sin {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}}}}, 으로 치환하면 위 방정식은&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수학|4({{수직분수|d&#039;&#039;y&#039;&#039;|d&#039;&#039;t&#039;&#039;}})² {{=}} &#039;&#039;ω&#039;&#039;²(1 - &#039;&#039;y&#039;&#039;²)(1 - &#039;&#039;y&#039;&#039;² sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}으로 바뀜.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;근데 이건 [[야코비 타원함수]] 미분방정식이니 y값은&amp;lt;br&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{수학|&#039;&#039;y&#039;&#039; {{=}} sn ({{수직분수|&#039;&#039;ωt&#039;&#039;|2}}{{!}}sin² {{수직분수|&#039;&#039;θ&#039;&#039;{{아래첨자|0}}|2}})}}로 구해지고&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>옛@달빛머리</name></author>
	</entry>
</feed>