If int(1)/(1+sinx)dx=tan((x)/(2)+a)+b th...

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

A

`a=pi/4, b=3`

B

`a=-pi/4, b=3`

C

`a=pi/4,` b=arbitrary constant

D

`a=-pi/4,` b=arbitrary constant

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The correct Answer is:

D

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