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int(0)^(pi//2)cos^(2) x" "dx=...

`int_(0)^(pi//2)cos^(2) x" "dx=`

A

`(3pi)/4`

B

`pi/4`

C

`(3pi)/2`

D

`pi/2`

Text Solution

Verified by Experts

The correct Answer is:
B
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