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int (dx)/(x^2 + 2x + 2) equals :...

`int (dx)/(x^2 + 2x + 2)` equals :

A

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

B

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

C

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

D

`tan^(-1)x+ C`

Text Solution

Verified by Experts

The correct Answer is:
B
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