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

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

A

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

B

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

C

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

D

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

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