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int(-pi/3)^(pi/3) (x sinx)/(cos^(2)x) dx...

`int_(-pi/3)^(pi/3) (x sinx)/(cos^(2)x) dx=`

A

`1/3 (4pi+1)`

B

`(4pi)/3 -2log tan (5pi/12)`

C

`(4pi)/3 + log tan (5/12)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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