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int(0)^(pi//2)(1)/(1+3 cos^(2)x)dx=...

`int_(0)^(pi//2)(1)/(1+3 cos^(2)x)dx=`

A

`(pi)/(2)`

B

`(pi)/(4)`

C

`pi`

D

`(pi)/(8)`

Text Solution

Verified by Experts

The correct Answer is:
B
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