int sqrt(e^(x)-1) dx is equal to :...

` int sqrt(e^(x)-1) dx ` is equal to :

A

` 2[sqrt(e^(x)-1) -tan ^(-1) sqrt(e^(x)-1)]+c`

B

` sqrt(e^(x) -1)- tan ^(-1) sqrt(e^(x) -1) +c`

C

` sqrt(e^(x)-1)+ tan ^(-1) sqrt(e^(x) -1)+c`

D

` 2[sqrt(e^(x) -1)-tan ^(-1) sqrt(e^(x)+1)]+c`

Verified by Experts

The correct Answer is:

A

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