How do you find the inverse of $f(x) =x^3-2$ and is it a function?

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Answer 1 · 2016-07-14T11:44:33

Inverse function of $f(x)=x^3-2$ is $f(x)=root(3)(x+2)$

Let $f(x)=x^3-2=y$

i.e. $x^3=y+2$ or $x=root(3)(y+2)$ .

Hence inverse function of $f(x)=x^3-2$ is

$f(x)=root(3)(x+2)$

How do you find the inverse of f(x) =x^3-2f(x) =x^3-2 and is it a function?