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henriquerb
Someone knows how to integrate (x+sqrt(1-x²))dx?
|dw:1354658992590:dw| hmm not sure if this is hyperbolic *which they really dont teach* but this method here works since sqrt(1+x2) is a identity or whatever it is http://www.wolframalpha.com/input/?i=integrate+x+%2B+sqrt%281%2Bx^2%29
u might use trig sub like this\[x=\sin \theta\]or even\[x=\cos \theta\]