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suju101
integrate sqrt(1-cosx)
\[-2\sqrt{1-\cos (x )} \cot(x/2) + constant\]
i got 2sqrt2 cosx/2 ans. is this correct or not?
isnt it \[-2\sqrt{1+\cos x}+c\]
No that's wrong, you forgot to put a cotangent function of 0.5x in there and also its negative cosine of x.
\[\sqrt{1-(1-2\sin^2x/2)}\][]\sqrt{2}\]|dw:1326537077707:dw| i did this.is this wrong??
No you are right, except the integral of sin is -cos. --> -2sqrt2*cos(x/2)+C
AronWest is also correct, there are just different forms of the same answer