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int(x^(3)dx)/(x^(2)+1)^(3) is equal to...

`int(x^(3)dx)/(x^(2)+1)^(3)` is equal to

A

`1/4[(2x^(2)+1)/(x^(2)+1)^(2)]+K`

B

`-1/4[(2x^(2)+1)/(x^(2)+1)^(2)]+K`

C

`1/3[(2x^(2)+1)/(x^(2)+1)^(2)]+K`

D

`-1/3[(2x^(2)+1)/(x^(2)+1)^(2)]+K`

Text Solution

Verified by Experts

The correct Answer is:
B
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