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Re: [obm-l] SOMA{1,n} tg (kx)
- To: obm-l@xxxxxxxxxxxxxx
- Subject: Re: [obm-l] SOMA{1,n} tg (kx)
- From: "saulo nilson" <saulo.nilson@xxxxxxxxx>
- Date: Fri, 30 Mar 2007 22:40:39 -0300
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produto de coska = f(a)
produto kcoska = n!f(a)
tira ln dos lados e deriva em relaçao a a
- somatgka =f´(a)/n!f(a)
soma tgka=-f´(a)/n!f(a)
f(a)=cosa*cos2a*cos3a*cos4a*cos5a*....cosna
Como se calcula o somatorio com k de 1 até n de tg (kx) ?
Aceito qualquer metodo de resolucao, mas se conseguirem transformar
isso numa soma telescopica melhor ainda.
Muito Obrigado.
-----------------------------
RAFAEL
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