Answer
$3$
Work Step by Step
The given expression is
$=729^{\frac{1}{6}}$
Use $729=3^6$.
$=(3^6)^{\frac{1}{6}}$
Use $(a^n)^m=a^{nm}$.
$=3^{6\cdot \frac{1}{6}}$
Simplify.
$=3$
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