Evaluate - cube root of -1

$- \sqrt[3]{- 1}$

Step 1

Rewrite $- 1$ as ${(- 1)}^{3}$ .

$- \sqrt[3]{{(- 1)}^{3}}$

Step 2

Pull terms out from under the radical, assuming real numbers.

$- - 1$

Step 3

Multiply $- 1$ by $- 1$ .

$1$

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