int(dx)/(x^(2) +2x + 2) is equal to...

`int(dx)/(x^(2) +2x + 2) ` is equal to

A

`x tan^(-1)(x+1) + C`

B

`tan^(-1)(x + 1) + C`

C

`(x + 1)x tan^(-1) + C`

D

`tan^(-1) + C`

Verified by Experts

The correct Answer is:

B

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