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

`int(e^x-e^-x)/(e^x+e^-x).dx`

A

`logabs(e^(x)-e^(-x))+c`

B

`logabs(e^(x)+e^(-x))+c`

C

`logabs(e^(2x)-1)+c`

D

`logabs(1+e^(2x))+c`

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The correct Answer is:

B

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