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ajuda

To: <obm-l@xxxxxxxxxxxxxx>
Subject: ajuda
From: "filho" <plutao@xxxxxxxxxxxxx>
Date: Tue, 20 Feb 2001 22:02:00 -0300
Reply-To: obm-l@xxxxxxxxxxxxxx
Sender: owner-obm-l@xxxxxxxxxxxxxx

Prove que: se A + B + C = 180 e 8.cosA.cosB.cosC = 1 então o triângulo é equilátero.

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