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int(0)^(pi//6)(2+3x^(2))cos3x dx=...

`int_(0)^(pi//6)(2+3x^(2))cos3x dx=`

A

`1/36(pi+16)`

B

`1/36(pi-16)`

C

`1/36(pi^(2)-16)`

D

`1/36(pi^(2)+16)`

Text Solution

Verified by Experts

The correct Answer is:
D
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