Re: [obm-l] Uma PAG

To: obm-l@xxxxxxxxxxxxxx
Subject: Re: [obm-l] Uma PAG
From: "Samir Rodrigues" <uijdjbof@xxxxxxxxx>
Date: Thu, 20 Sep 2007 17:13:11 -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:references; bh=3qbBJlhFptazfZpBKgogolQUeOfuHfoD1R24J05IuiQ=; b=BQE3bsUaaFyB2RfcLs7jLFHkKeQuQVVDCdnoASV/HL5bIhIx2yaNrM36AL+vSWJqo5jCNxeYlNgay2OcNZNgrC8D4yJgQdZ4SwtwURs9k+fAWrOXvQVqwJH4AhIYdVboljiDyZ5Z1GURjOT59D7vxfu7j87ZJXkwgIk9QCLHFuU=
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:references; b=bummHvbWVicDFfE64yRg+4R3MSazDkpVNs9XPqCew1eG8UK+m8qpObsfPq3emOr/oBZ/PEggZRMWeLeABgIMHEQq4zQrnEzRVn5rGDY6SGay84kws1KGoNUSux2tUWvC/eyZJ+XuXHLM+5xTdlZRRfD6UilDRtwwg81WJWa1fI0=
In-reply-to: <JOOKHG$143DB104BB72AFD952D80586BCF9761C@xxxxxxxxxx>
References: <JOOKHG$143DB104BB72AFD952D80586BCF9761C@xxxxxxxxxx>
Reply-to: obm-l@xxxxxxxxxxxxxx
Sender: owner-obm-l@xxxxxxxxxxxxxx

Sim, está correto desde que x nao seja 1.
Voce pode fazer tanto derivando a soma de uma PG, ou utilizando os metodos de resolucao de PAG's.

Em 20/09/07, vitoriogauss <vitoriogauss@xxxxxxxxxx> escreveu:

Calcule a soma Sn=1+2x+3x^2+...+nx^n-1

Eu cheguei ao seguinte resultado:

Sn= (1 - (n+1)x^n + nx^n+1 ) / ( 1 - x )^2

Estou correto????

--
Samir Rodrigues