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int (x^3-1)/(x^3+x) dx=...

`int (x^3-1)/(x^3+x) dx=`

A

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

B

`x- log x + log sqrt(x^2 +1)- tan^(-1) x+c`

C

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

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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