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int (0) ^( pi //2) (cos theta )/( sqrt (...

`int _(0) ^( pi //2) (cos theta )/( sqrt ( 4 - sin ^(2) theta)) d theta ` is equal to :

A

`pi/2`

B

`pi/6`

C

`pi/3`

D

`pi/5`

Text Solution

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The correct Answer is:
B
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