CUET Preparation Today
$f(x)=x \frac{a^x-1}{a^x+1}$ is : |
even odd neither even nor odd None of these |
even |
$f(x)=x \frac{a^x-1}{a^x+1}$ $f(-x)=(-x) \frac{a^{-x}-1}{a^{-x}+1}=x \frac{a^x-1}{a^x+1}=f(x)$ So f(x) is even. Hence (1) is the correct answer. |
