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The value of int ( ( x ^ 2 + 1 )) ...

The value of ` int ( ( x ^ 2 + 1 )) /( x ^ 4 + x ^ 2 + 1 ) dx ` is

A

`(1)/(sqrt3) tan ^(-1) ((sqrt3 x)/( x ^(2) -1))+C`

B

`(1)/(sqrt3) tan ^(1) ((sqrt3 x)/( x ^(2) -1))+C`

C

`(1)/(sqrt3) tan ^(-1) ((x ^(2) + 1)/( sqrt3x )) + C`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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