# 2.  Find :    (iv)    $125^{\frac{-1}{3}}$

Given number is $125^{\frac{-1}{3}}$
$\Rightarrow 125^{\frac{-1}{3}} = (5^3)^\frac{-1}{3} = 5^{-1} = \frac{1}{5}$
Therefore, the answer is $\frac{1}{5}$