[obm-l] Logaritmos

To: obm-l@xxxxxxxxxxxxxx
Subject: [obm-l] Logaritmos
From: "Leandro Morelato" <lmorelato@xxxxxxxxx>
Date: Sat, 30 Dec 2006 23:05:51 -0200
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Boa noite, agradeço quem ajudar-me:

-- Se log₃₉13 = r, então log₃₉9 é igual a: ...?

Leandro