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int1/(1+e^(x))dx is equal to...

`int1/(1+e^(x))dx` is equal to

A

`log_(e) ((e^(x)+1)/e^(x)) + c`

B

`log_(e) ((e^(x)-1)/e^(x)) + c`

C

`log_(e) (e^(x)/(e^(x)+1)) + c`

D

`log_(e) (e^(x)/(e^(x)-1)) + c`

Text Solution

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The correct Answer is:
C
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