## henriquerb Group Title Someone knows how to integrate (x+sqrt(1-x²))dx? one year ago one year ago

1. Goten77 Group Title

|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

2. Goten77 Group Title

sqrt(x-x2) i meant

3. mukushla Group Title

u might use trig sub like this$x=\sin \theta$or even$x=\cos \theta$