int e^(x)((2 tanx)/(1+tanx)+cot^(2)(x+(p...

`int e^(x)((2 tanx)/(1+tanx)+cot^(2)(x+(pi)/(4)))dx` is equal to

A

`e^(x)tan((pi)/(4)-x)+C`

B

`e^(x)tan(x-(pi)/(4))+C`

C

`e^(x)tan((3pi)/(4)-x)+C`

D

none of these

Verified by Experts

The correct Answer is:

B

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