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int0^pi(x dx)/(1+cosalpha*sinx)=(pialpha...

`int_0^pi(x dx)/(1+cosalpha*sinx)=(pialpha)/(sinalpha), 0 < alpha < pi`

A

`(pi)/(sin alpha)`

B

`(pi alpha)/( sin alpha)`

C

`(alpha)/( sin alpha)`

D

`(sin alpha)/(alpha)`

Text Solution

Verified by Experts

The correct Answer is:
B
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