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If f(x)=(2^(x)-2^(-x))/(2^(x)+2^(-x)),"t...

If `f(x)=(2^(x)-2^(-x))/(2^(x)+2^(-x)),"then"f^(-1)(x)` is :

A

`1/2log_{2},((x)/(1-x))`

B

`1/2log_{2},((1+x)/(1-x))`

C

`1/2log_{2},((1+x)/(x))`

D

`1/2log_{2},((2+x)/(2-x))`

Text Solution

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The correct Answer is:
B
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