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d/(dx) ((3^x - 3^(-x))/(3^x + 3^(-x))) =...

`d/(dx) ((3^x - 3^(-x))/(3^x + 3^(-x)))` =

A

`(4 log 3)/((3^x + 3^(-x))^2)`

B

`(-4 log 3)/((3^x + 3^(-x))^2)`

C

`(1)/((3^x + 3^(-x))^2)`

D

`(-1)/((3^x + 3^(-x))^2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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