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(d)/(dx)[log((e^(4x))/(1+e^(4x)))]...

`(d)/(dx)[log((e^(4x))/(1+e^(4x)))]`

A

`(-1)/(1+e^(4x))`

B

`(2)/(1+e^(4x))`

C

`(-3)/(1+e^(4x))`

D

`(4)/(1+e^(4x))`

Text Solution

Verified by Experts

The correct Answer is:
D
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