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int((1+tan)/(1-tanx))^(2)dx=...

`int((1+tan)/(1-tanx))^(2)dx=`

A

`1/3log[(cosx-sinx)]^(3)+c`

B

`tan(x-pi/4)+c`

C

`tan(pi/4+x)-x+c`

D

`2((1+sec^(2)x)/(1-sec^(2)x))+c`

Text Solution

Verified by Experts

The correct Answer is:
C
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