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Which of the following function is even ...

Which of the following function is even function?

A

`f(x)=(a^(x)+1)/(a^(x)-1)`

B

`f(x)=x((a^(x)-1)/(a^(x)+1))`

C

`f(x)=(a^(x)-a^(-x))/(a^(x)+a^(-x))`

D

`f(x)="sin "x`

Text Solution

Verified by Experts

The correct Answer is:
B
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