gaokao 2020 Q5

gaokao · China · shanghai 4 marks Composite & Inverse Functions Find or Apply an Inverse Function Formula
Given $f ( x ) = x ^ { 3 }$, find $f ^ { -1 } ( x ) =$ $\_\_\_\_$
$x ^ { \frac { 1 } { 3 } } ( x \in \mathbb{R} )$
Given $f ( x ) = x ^ { 3 }$, find $f ^ { -1 } ( x ) =$ $\_\_\_\_$