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

`int(e^(-x))/(1+e^(x))dx=`

A

`log |e^x+1|-x-e^(-x)-1+c`

B

`log |e^x+1|+x-e^(-x)-1+c`

C

`log |e^x+1|-x+e^(-x)-1+c`

D

`log |e^x+1|+x+e^(-x)-1+c`

Text Solution

Verified by Experts

The correct Answer is:
A
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