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int (cos 2x)/(cosx+sinx)^(2)dx =...

`int (cos 2x)/(cosx+sinx)^(2)dx =`

A

(-1)/(sinx+cos x)+c

B

log(sinx+cosx)+c

C

log(sinx-cosx)+c

D

`log (sinx +cosx)^(2)+c`

Text Solution

Verified by Experts

The correct Answer is:
B
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