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int(0)^(pi//4)log ((sin x +cos x )/(cosx...

`int_(0)^(pi//4)log ((sin x +cos x )/(cosx))dx ` is equal to

A

`pi/2 log 2 `

B

log 3

C

`pi/4 log 2 `

D

`pi/8 log 2 `

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The correct Answer is:
D
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