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[obm-l] problema de Integral



Por favor pessoal, resolvam esta integral pra mim! Fiquei travado

Integral(1/(1+x^2)(sqrt(1-x^2))dx


RESPOSTA:
(1/sqrt(2))arctg((xsqrt(2))/(sqrt(1-x^2)) + C

Obrigado
-- 
[about him:]
  It is rare to find learned men who are clean, do not stink and have a 
sense of humour.
-Gottfried Whilhem Leibniz

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