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int cos x. log (tan (x/2)) dx =...

`int cos x. log (tan (x/2)) dx =`

A

sin x. log(tan (x/2)) +c

B

sin x. log(tan (x/2))-x +c

C

sin x. log(tan (x/2)) +c

D

None of these

Text Solution

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The correct Answer is:
B
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