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[obm-l] (UnB) TRIGONOMETRIA

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Subject: [obm-l] (UnB) TRIGONOMETRIA
From: "arkon@xxxxxxxxxx" <arkon@xxxxxxxxxx>
Date: Sun, 29 Jun 2008 17:13:12 -0300
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ALGUÉM PODE RESOLVER, POR FAVOR

Para 0<x<(pi/2), se tgx=3, então cosx=1/sqrt(10) ?

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