int(0)^((pi)/2)(tan^(7)x)/(cot^(7)x+tan^...

`int_(0)^((pi)/2)(tan^(7)x)/(cot^(7)x+tan^(7)x)dx` is equal to

A

(a) `(pi)/2`

B

(b) `(pi)/4`

C

(c) `(pi)/6`

D

(d) `(pi)/3`

Verified by Experts

The correct Answer is:

B

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