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integrate (1)/(x^4 + 1) dx . Pista: factorice como (x^2 + sqrt(2)x + 1)(x^2 - sqrt(2)x + 1)
integrate (1)/(x^4 + 1) dx . Pista: factorice como (x^2 + sqrt(2)x + 1)(x^2 - sqrt(2)x + 1)
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