Which of the following function is an even function? – InterviewSolution

1.	Which of the following function is an even function?
Answer» `F(X)=(a^x+1)/(a^x-1)` `f(x)=(a^x+a^-x)/(a^x-a^-x)` `f(x)=(a^x+1)/(-a^x-1)` `f(x)=SIN(x)` ANSWER :C

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