Question

Is the statement true or false: numbers in the domain of a radical function will always be nonnegative?

Answer 1

False

Explanation:

Radical functions include cube (and higher odd degree) roots, which are defined for any radicand.

The function `f(x) = x^3` is one to one from `(-oo, oo)` onto `(-oo, oo)`, with inverse `f^(-1)(x) = root(3)(x)` (understood as the real cube root).