Applicare la formula: $\left(ab\right)^n$$=a^nb^n$

Applicare la formula: $a^b$$=a^b$, dove $a=27$, $b=\frac{1}{3}$ e $a^b=\sqrt[3]{27}$

Applicare la formula: $\left(x^a\right)^b$$=x^{ab}$, dove $a=21$, $b=\frac{1}{3}$, $x^a^b=\sqrt[3]{w^{21}}$, $x=w$ e $x^a=w^{21}$

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=1$, $b=3$, $c=21$, $a/b=\frac{1}{3}$ e $ca/b=21\cdot \left(\frac{1}{3}\right)$

Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=21$, $b=3$ e $a/b=\frac{21}{3}$