y= (e^(sqrt (x) +1) )/( e^(sqrt( x)- 1))...

` y= (e^(sqrt (x) +1) )/( e^(sqrt( x)- 1)),then (dy)/(dx)=`

A

` (-e^(sqrt(x)))/( sqrt(x) (e^(sqrt(x) -1))^(2))`

B

` (e^(sqrt(x)))/( sqrt(x) (e^(sqrt(x) -1))^(2))`

C

` (-e^(sqrt(x)))/( 2sqrt(x) (e^(sqrt(x) -1))^(2))`

D

` (-2e^(sqrt(x)))/( sqrt(x) (e^(sqrt(x) -1))^(2))`

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The correct Answer is:

A

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