if int (-1//2) ^( 1//2) cos x log ((1 + ...

if `int_ (-1//2) ^( 1//2) cos x log ((1 + x )/(1- x )) dx = k. log 2,` then k equal to :

A

0

B

`-1`

C

`-2`

D

`1/2`

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The correct Answer is:

A

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