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int1/(2+cosx)dx...

`int1/(2+cosx)dx`

A

`1/3 tan^-1(1/sqrt3 tan(x/2))

B

`1/sqrt3 tan^-1(1/sqrt3 tan(x/2))+c`

C

`4/sqrt3 tan^-1(1/sqrt3 tan(x/2))+c`

D

`2/sqrt3 tan^-1(tan(x/2))+c`

Text Solution

Verified by Experts

The correct Answer is:
B
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