If int x log (1+x^(2))dx= phi (x) log (1...

If `int x log (1+x^(2))dx= phi (x) log (1+x^(2))+Psi(x)+C`, then

A

`phi(x)=(1+x^(2))/(2)`

B

`Psi(x)=(1+x^(2))/(2)`

C

`Psi (x)=-(1+x^(2))/(2)`

D

`phi(x)=-(1+x^(2))/(2)`

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The correct Answer is:

A, C

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