Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=u^{-5}$, $a^m=u^{-2}$, $a=u$, $a^m/a^n=\frac{u^{-2}}{u^{-5}}$, $m=-2$ e $n=-5$

Simplify $\sqrt{u^{3}}$ using the power of a power property: $\left(a^m\right)^n=a^{m\cdot n}$. In the expression, $m$ equals $3$ and $n$ equals $\frac{1}{12}$

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=1$, $b=12$, $c=3$, $a/b=\frac{1}{12}$ e $ca/b=3\cdot \left(\frac{1}{12}\right)$

Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=3$, $b=12$ e $a/b=\frac{3}{12}$