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If int (xe^x)/(sqrt(1 + e^x)) dx = f(x)...

If ` int (xe^x)/(sqrt(1 + e^x)) dx = f(x) sqrt(1 + e^x) - 2 In g(x) + c` , then

A

`f(x)=sqrt(1+e^x)`

B

`g(x)=(sqrt(1+e^x)-1)/(sqrt(1+e^x)+1)`

C

`g(x)=(sqrt(1+e^x)+1)/(sqrt(1+e^x)-1)`

D

`e^x+1`

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The correct Answer is:
A, B
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PATHFINDER-INDEFINITE INTEGRATION-QUESTION BANK
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