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	<title>Professores Online &#187; jclnunes</title>
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		<title>Geometria analítica, retas no r3 e ponto medio</title>
		<link>https://www.professoronline.net/geometria-analitica-retas-no-r3-e-ponto-medio/</link>
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		<pubDate>Mon, 22 Oct 2012 14:29:14 +0000</pubDate>
		<dc:creator><![CDATA[jclnunes]]></dc:creator>
				<category><![CDATA[Matemática]]></category>
		<category><![CDATA[analítica]]></category>
		<category><![CDATA[e]]></category>
		<category><![CDATA[geometria]]></category>
		<category><![CDATA[médio]]></category>
		<category><![CDATA[no]]></category>
		<category><![CDATA[ponto]]></category>
		<category><![CDATA[r3]]></category>
		<category><![CDATA[retas]]></category>

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		<description><![CDATA[São dadas as retas r:x=z+1, y=2z-1 e s: x=z+3, y=z-5 e ponto A(3,-2,1). Cacule as coordenadas dos pontos P e Q pertencentes, respectivamente a r e s, de modo que A seja o ponto médio do segmento PQ. resposta: P(1,-1,0) e Q(5,3,2). tentei achar a solução, mas não coincidiu com o resultado do gabarito, procurei [&#8230;]]]></description>
				<content:encoded><![CDATA[<p>São dadas as retas r:x=z+1, y=2z-1 e s: x=z+3, y=z-5 e ponto A(3,-2,1). Cacule as coordenadas dos pontos P e Q pertencentes, respectivamente a r e s, de modo que A seja o ponto médio do segmento PQ.<br />
resposta: P(1,-1,0) e Q(5,3,2).<br />
tentei achar a solução, mas não coincidiu com o resultado do gabarito, procurei na internet e não encontrei nada parecido com a pergunta.</p>
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