int(1+x^(2))/(xsqrt(1+x^(4)))dx is equal...

`int(1+x^(2))/(xsqrt(1+x^(4)))dx` is equal to

A

`-log|x-(1)/(x)+sqrt((x-(1)/(x))^(2))-2|+C`

B

`-log|x-(1)/(x)+sqrt((x-(1)/(x))^(2))+2|+C`

C

`-log|x-(1)/(x)+sqrt((x-(1)/(x))^(2))-2|+C`

D

none of these

Verified by Experts

The correct Answer is:

b

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