If int1/(1+sinx)dx=tan(x/2+a)+b, then...

If `int1/(1+sinx)dx=tan(x/2+a)+b`, then

A

`a=-pi/4,b in R`

B

`a=pi/4,b in R`

C

`a=(5pi)/4, b in R`

D

None of these

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Verified by Experts

The correct Answer is:

A

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