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If int(0)^((pi)/(2)) (cot x)/(cot x+cose...

If `int_(0)^((pi)/(2)) (cot x)/(cot x+cosecx)dx=m(pi+n)`, then `m.n` is equal to :

A

`-1/2`

B

`1`

C

`1/2`

D

`-1 `

Text Solution

Verified by Experts

The correct Answer is:
D
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