Question

How do you determine if `f(x)= e^x` is an even or odd function?

Answer 1

If`f(-x) = f(x)`, f(x) is an even function of x..
If `f(-x)=-f(x)`, f(x) is odd.

Otherwise neither, like `e^x`..
`e^x>0 and e^(-x)` is the reciprocal `1/e^x`.