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int((1+x)^(2))/(x(1+x^(2)))dx =...

`int((1+x)^(2))/(x(1+x^(2)))dx =`

A

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

B

`log x - 2 tan^(-1)x`

C

`log[x(1+x^(2))]`

D

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

Text Solution

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The correct Answer is:
A
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