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

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

A

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

B

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

C

f(x) = x-1

D

f(x) = 3 (x-2)

Text Solution

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The correct Answer is:
B
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