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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) = x - 1

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

f(x) = 2(x - 2)

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