Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=1$, $b=3$, $c=\pi $, $a/b=\frac{1}{3}$ e $ca/b=\pi \sqrt{49}\cdot \left(\frac{1}{3}\right)$

Applicare la formula: $1x$$=x$, dove $x=\pi $

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=\pi $, $b=3$, $c=\sqrt{49}$, $a/b=\frac{\pi }{3}$ e $ca/b=\frac{\pi }{3}\sqrt{49}$

Applicare la formula: $x^a$$=pfgmin\left(x\right)^a$, dove $a=\frac{1}{2}$ e $x=49$

Applicare la formula: $\left(x^a\right)^b$$=x$, dove $a=2$, $b=1$, $x^a^b=\sqrt{7^{2}}$, $x=7$ e $x^a=7^{2}$