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[obm-l] trigonometria

To: <obm-l@xxxxxxxxxxxxxx>
Subject: [obm-l] trigonometria
From: "Guilherme Teles" <guilherme_teles@xxxxxxxxx>
Date: Thu, 22 Apr 2004 14:17:12 -0300
Reply-To: obm-l@xxxxxxxxxxxxxx
Sender: owner-obm-l@xxxxxxxxxxxxxx

Alguem pode me ajudar sobre estas :

1) sen (x - Pi/4) = 0

2) sen (2x + Pi) = -1

3) sen (x + Pi) = 1/2

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