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overset(n//8)underset(0)intcos^(3)4theta...

`overset(n//8)underset(0)intcos^(3)4thetadtheta`=

A

`(2)/(3)`

B

`(1)/(4)`

C

`(1)/(3)`

D

`(1)/(6)`

Text Solution

Verified by Experts

The correct Answer is:
D
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