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int (3-x^(2))/(1-2x+x^(2))e^(x)dx=e^(x)f...

`int (3-x^(2))/(1-2x+x^(2))e^(x)dx=e^(x)f(x)+c rArr f(x)=`

A

`(1+x)/(1 -x)`

B

`(1- x)/(1+ x)`

C

`(1+ x)/(x -1)`

D

`(x - 1)/(x + 1)`

Text Solution

Verified by Experts

The correct Answer is:
A
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