Applicare la formula: $\frac{d}{dx}\left(x^a\right)$$=ax^{\left(a-1\right)}$, dove $a=\frac{1}{3}$

Applicare la formula: $x^a$$=\frac{1}{x^{\left|a\right|}}$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=1$, $b=3$, $c=1$, $a/b=\frac{1}{3}$, $f=\sqrt[3]{x^{2}}$, $c/f=\frac{1}{\sqrt[3]{x^{2}}}$ e $a/bc/f=\frac{1}{3}\frac{1}{\sqrt[3]{x^{2}}}\sec\left(\sqrt[3]{x}\right)\tan\left(\sqrt[3]{x}\right)$

Applicare la formula: $a\frac{b}{x}$$=\frac{ab}{x}$