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int(dx)/(2x^(2)+x-1) is equal to...

`int(dx)/(2x^(2)+x-1)` is equal to

A

`(1)/(sqrt(7)) tan^(-1) ""((4x+1)/(sqrt(7)))+c`

B

`(1)/(2 sqrt(7))+C`

C

`1/2 tan^(-1)"" ((4x +1)/(sqrt(7)))+c`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
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