int(dx)/(e^(x)+1-2e^(-x))=...

`int(dx)/(e^(x)+1-2e^(-x))=`

A

`log (e^x -1) - log (e^x +2)+C`

B

`1/2 log (e^x -1) -(1)/(3) log (e^x +2 +c `

C

`(1)/(3) log (e^x -1)-(1)/(3) log (e^x +2) +c`

D

`(1)/(3) log (e^x -1) +(1)/(3) log (e^x +2)+c`

Verified by Experts

The correct Answer is:

C

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