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## suju101 3 years ago integrate sqrt(1-cosx)

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1. Aron_West

$-2\sqrt{1-\cos (x )} \cot(x/2) + constant$

2. suju101

i got 2sqrt2 cosx/2 ans. is this correct or not?

3. Aron_West

Its wrong.

4. kevinfrankly

isnt it $-2\sqrt{1+\cos x}+c$

5. Aron_West

No that's wrong, you forgot to put a cotangent function of 0.5x in there and also its negative cosine of x.

6. suju101

$\sqrt{1-(1-2\sin^2x/2)}$[]\sqrt{2}\]|dw:1326537077707:dw| i did this.is this wrong??

7. dumbcow

No you are right, except the integral of sin is -cos. --> -2sqrt2*cos(x/2)+C

8. dumbcow

AronWest is also correct, there are just different forms of the same answer

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