[obm-l] questao de trigonometria - ITA

[Emanuel Valente <emanuel@xxxxxxxxxxxx>]

pessoal, dêem uma ajuda aqui!!
(ITA)
4*sen^2(x)-2[1+(2)^1/2]*sen(x) + 2^1/2 

para 0<x<2pi

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[]'s
SO -> GNU/linux Slackware
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