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

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

A

`log (x^4 +x^2 +1)+c`

B

`(1)/(2) log (x^2 -x+1)/(x^2 +x+1)+c`

C

`(1)/(2) log (x^2 +x +1)/(x^2-x+1)+c`

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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