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Evaluate the integerals. int (x ^(2)...

Evaluate the integerals.
`int (x ^(2) +1)/(x ^(4) +1)` dx on R.`

A

`(1)/(sqrt(2))"Tan"^(-1) (x^(2)-1)/(2x)+c`

B

`(1)/(sqrt(2))"Tan"^(-1) (x^(2)+1)/(2x)+c`

C

`(1)/(sqrt(2))"Tan"^(-1) (x+1)/(2x)+c`

D

`(1)/(sqrt(2))"Tan"^(-1) (x-1)/(2x)+c`

Text Solution

Verified by Experts

The correct Answer is:
A
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