int(dx)/(1+3sin^2x)....

`int(dx)/(1+3sin^2x).`

A

`1/3tan^(-1)(3tan^(2)x)+c`

B

`1/2tan^(-1)(2tanx)+c`

C

`tan^(-1)(tanx)+c`

D

None of these

Text Solution

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The correct Answer is:

B

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