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int (dx)/(x^(2)+x+1)dx is :...

`int (dx)/(x^(2)+x+1)dx` is :

A

`(sqrt(3))/(2)tan^(-1)((2x+1)/(sqrt(3)))+c`

B

`(2)/(sqrt(3))tan^(-1)((2x+1)/(sqrt(3)))+c`

C

`(1)/(sqrt(3))tan^(-1)((2x+1)/(sqrt(3)))+c`

D

None of these.

Text Solution

Verified by Experts

The correct Answer is:
B
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