[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [obm-l] RAÍZES INTEIRAS
- To: obm-l@xxxxxxxxxxxxxx
- Subject: Re: [obm-l] RAÍZES INTEIRAS
- From: "Ivan lopes" <lopesivan.del@xxxxxxxxx>
- Date: Thu, 11 Oct 2007 17:34:31 -0300
- DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=yRlM960YRLFEmS3pXtlpoPhKZ9wD8x36LXTqbWcmJq8=; b=U/RHubSatnvQt450j2xgiyLn+f8Am+ODGzusnqaQ78RunfkNBq29HCDZ9eHHYI8g0IIaoDvUJtZcCrMg2ocvnCb6M8q435+xIXTx5rYvjk1O2UsCRNLPOmwFgS3Z9J1UirnIbd7K99L/G7H8l0eEJPelMs0f5o3JZfdX+bBUlTs=
- DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=jH4G7L3heQdvyE22r/Tr3Yofg8xYTXTWyu2yD8nNemgMUEO9nstqyY0WVjg7IZNTj47FmXr3dgpXeuk0yLYie0um8wHnBI0RqL92flaAhzn4pihZfrZYT5wYjSj8siygP6/iRgiCOcI/lOzLgWHNhTb9dkoNbIDP7CBLmq0JlG0=
- In-Reply-To: <JPRHN0$EFD3F727A42B665DC85069D3A429B7BD@bol.com.br>
- References: <JPRHN0$EFD3F727A42B665DC85069D3A429B7BD@bol.com.br>
- Reply-To: obm-l@xxxxxxxxxxxxxx
- Sender: owner-obm-l@xxxxxxxxxxxxxx
i) solucao para quem viu ....
p(x) = x^3 -2x^2 -5x +6
-> x^3 - x^2 - x^2 - 6x + x +6
-> x^3 - x^2 - 6x - x^2 + x +6
-> x^3 - x^2 -6x - (x^2 -x -6)
-> (x^2 - x - 6)x - (x^2 - x -6)
-> (x^2 - x - 6)(x-1)
-> (x^2 - 3x + 2x -6)(x-1)
-> [(x -3)x + 2(x -3)](x-1)
-> (x -3)(x + 2)(x-1)
pronto ....
ii) cara ... sao coeficientes inteiros ... neh
entao chuta x = 1
p(1) = 1 -2 -5 +6 = 0
eh raiz
....
baixamos a ordem da equacao ...
Briot-Ruffini
|3 -2 -5 6
1|1 -3 -2 0
x^2 - x - 6
x = 3 e x = -2
--
[ ]'s
Ivan Carlos Da Silva Lopes
Engenheiro Eletronico e Computacao - UFRJ
=========================================================================
Instruções para entrar na lista, sair da lista e usar a lista em
http://www.mat.puc-rio.br/~obmlistas/obm-l.html
=========================================================================