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If int ((1-cos x)^(2//7))/((1+cosx)^(9//...

If `int ((1-cos x)^(2//7))/((1+cosx)^(9//7))dx=A ("tan" (x)/(2))^(K)+c`, then `AK=`

A

`(11)/(7)`

B

`(121)/(49)`

C

`(49)/(121)`

D

1

Text Solution

Verified by Experts

The correct Answer is:
D
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