If $$ f(x) = \sqrt[3]{x} $$ , then $$ f(-729) = \underline{\...

Question Analysis
This question tests the student's ability to evaluate a cubic root function at a negative input.

Key Concept Explanation
The cubic root function, defined as , gives the value that, when cubed, results in the input. It is defined for all real numbers, including negative inputs.

Step-by-step Solution
1. Given the function .
2. Substitute into the function: