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	<title>Comments on: Trigonometria</title>
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	<description>Exercícios para o Vestibular</description>
	<lastBuildDate>Thu, 09 Feb 2012 03:08:26 +0000</lastBuildDate>
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		<title>By: JR</title>
		<link>http://www.amigonerd.com/trigonometria/comment-page-1/#comment-56289</link>
		<dc:creator>JR</dc:creator>
		<pubDate>Thu, 09 Feb 2012 03:08:26 +0000</pubDate>
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		<description>Os lados do triangulo obedecem &#224; rela&#231;&#227;o (4)^2 +(3)^2 = 5^2 ent&#227;o &#233; um triangulo retangulo. &#160;A soma do seno de seus angulos seria: seno=cateto oposto/hipotenusa ou seja, sin(90) + 4/5 + 3/5 = 2,4 &#160;-&gt; &#160;1 + 0,8 + 0,6. letra E</description>
		<content:encoded><![CDATA[<p>Os lados do triangulo obedecem &agrave; rela&ccedil;&atilde;o (4)^2 +(3)^2 = 5^2 ent&atilde;o &eacute; um triangulo retangulo. &nbsp;A soma do seno de seus angulos seria: seno=cateto oposto/hipotenusa ou seja, sin(90) + 4/5 + 3/5 = 2,4 &nbsp;-&gt; &nbsp;1 + 0,8 + 0,6. letra E</p>
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		<title>By: Fernando Tezza</title>
		<link>http://www.amigonerd.com/trigonometria/comment-page-1/#comment-56271</link>
		<dc:creator>Fernando Tezza</dc:creator>
		<pubDate>Thu, 09 Feb 2012 00:19:03 +0000</pubDate>
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		<description>Considere um tri&#226;ngulo retangulo. logo temos:
&#160;
A hipotenusa com 5 u.c
Catetos 3,4 u.c
&#160;
sen a=3/5
sen b=4/5
sen a + sen b =3/5+4/5=7/5=1,4
&#160;
Letra &quot;A&quot; </description>
		<content:encoded><![CDATA[<p>Considere um tri&acirc;ngulo retangulo. logo temos:<br />
&nbsp;<br />
A hipotenusa com 5 u.c<br />
Catetos 3,4 u.c<br />
&nbsp;<br />
sen a=3/5<br />
sen b=4/5<br />
sen a + sen b =3/5+4/5=7/5=1,4<br />
&nbsp;<br />
Letra &#8220;A&#8221;</p>
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