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If int (dx)/(x^(2) + 2x+ 2) = f(x) + c ...

If `int (dx)/(x^(2) + 2x+ 2) ` = f(x) + c then f(x) =

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
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