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[obm-l] Matriz inversa

To: <obm-l@xxxxxxxxxxxxxx>
Subject: [obm-l] Matriz inversa
From: "Carlos Gomes" <cgmat@xxxxxxxxxx>
Date: Wed, 25 Feb 2004 09:57:27 -0300
Reply-To: obm-l@xxxxxxxxxxxxxx
Sender: owner-obm-l@xxxxxxxxxxxxxx

Ol� amigos, tudo bem? Ser� que algu�m pode me ajudar com essa:

Verifique que se I-AB � invert�vel ( I � a matriz identidade de ordem n e A e B s�o matrizes quadradas de ordem n) I-BA tamb�m � invert�vel e al�m disso (I-BA)^(-1) = I+B.(I-AB)^(-1) . A.

Um forte abra�o, Cgomes

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