Use Composition to Verify Whether or Not the Inverse Is $$f ( x ) = x ^ { 3 } + 8 , f ^ { - 1 } ( x ) = \sqrt [ 3 ] { x + 8 }$$

True/False

Use composition to verify whether or not the inverse is correct.
- $$f ( x ) = x ^ { 3 } + 8 , f ^ { - 1 } ( x ) = \sqrt [ 3 ] { x + 8 }$$