Question

If h(x) is the inverse of f(x), what is the value of h(f(x))?

Answer 1

Well

since \[\large h(x) = f^{-1}(x)\]

we essentially have

\[\large f^{-1}(f(x))\]

and that will equal

\[\large f^{-1}(f(x)) = x\]

The function times its inverse will cancel out