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

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

A

`e^(tan^(-1))x+c`

B

`(1)/((1+x^(2))^(2))+c`

C

`e^(tan^(-1)x)^(2)+c`

D

`tan^(-1)x*e^(tan^(-1)x)+c`

Verified by Experts

The correct Answer is:

A

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