Answer
$$\frac{1}{6}$$
Work Step by Step
$Evaluate$ $the$ $expression:$
$$216^{-\frac{1}{3}}$$
$$216^{-\frac{1}{3}} = \frac{1}{216^{\frac{1}{3}}}$$
$$\frac{1}{216^{\frac{1}{3}}} = \frac{1}{\sqrt[3] {216}}$$
$$=\frac{1}{6}$$
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