int(0)^((pi)/( 4)) cos^(3) 2x dx = "…......

`int_(0)^((pi)/( 4)) cos^(3) 2x dx = "….........."`

A

`(2)/(3)`

B

`(1)/(3)`

C

0

D

`(2pi)/(3)`

Verified by Experts

The correct Answer is:

`(1)/(3)`

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