[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [obm-l] RES: [obm-l] Ajuda no desafio sobre álgebra
- To: obm-l@xxxxxxxxxxxxxx
- Subject: Re: [obm-l] RES: [obm-l] Ajuda no desafio sobre álgebra
- From: "Igor Battazza" <battazza@xxxxxxxxx>
- Date: Sun, 27 May 2007 03:17:41 -0300
- DKIM-Signature: a=rsa-sha1; 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; b=MXXuWhHtF1x9ZrQj1o/r2uJNyBDTCYkZWGJcd/GuZZwQHFafIWNalgSrXazkWnlgH6ZV68OtbR0UdVo9VahxdY3JBlbrJ5Cqbet2bGNJ3vZCCzuSiiiUrL+7P9ycbC6skRWj+V+uNobgjPoVzfxd7LroOc6ibJaTE/C4MFJr5sM=
- 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=lw63eBYHILMstIe/LW2vZEE4C/CWDZAzPydFYQ5P0cnUGR236/iW/rf+OyAokWZrZ+R9Thw3ulFhW5QMVh7ibgjyn8PjjMeYHOrozz29RZrxhM19YX60Qw5IEQM22kSkonMffVh2BjlNgvlOSMU+A9FKfr441XZAfaTidq2HTck=
- In-Reply-To: <F481C0D13C5B2340A09C98A4DBFCBC3361E689@MAIL.mme.gov.br>
- References: <BAY144-F222BB57DB75A9241C5DDADDF2B0@phx.gbl> <F481C0D13C5B2340A09C98A4DBFCBC3361E689@MAIL.mme.gov.br>
- Reply-To: obm-l@xxxxxxxxxxxxxx
- Sender: owner-obm-l@xxxxxxxxxxxxxx
Não sei se está certo, mas acho que fica mais simples assim:
%pi^%e < %e^%pi --> %pi^(%e*%i) < %e^(%pi*%i) --> %pi^(%e*%i) < -1 (*)
Aplicando ln(x) em ambos os membros de (*):
%e*%i*ln(%pi) < ln(-1) --> %e*%i*ln(%pi) < %pi*%i --> %e*ln(%pi) < %pi.
ln(%pi) < 1.2 * %e < %pi
Onde %pi = pi, %e = e = 2.7182..., %i = (-1)^(1/2) = sqrt(-1);
%e^(%pi*%i) + 1 = 0 pela identidade de Euler.
Se eu estiver errado me desculpem.
Igor.
=========================================================================
Instruções para entrar na lista, sair da lista e usar a lista em
http://www.mat.puc-rio.br/~nicolau/olimp/obm-l.html
=========================================================================