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int (e^(3 tan^(-1)x)/(1+x^(2))) dx...

`int (e^(3 tan^(-1)x)/(1+x^(2))) dx`

A

`e^(3 sec^(-1)x)/(2x)`

B

`1/3 e^(3 tan^(-1)x`

C

`e^(3 tan^(-1)x`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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