Applicare la formula: $\lim_{x\to c}\left(a^b\right)$$={\left(\lim_{x\to c}\left(a\right)\right)}^b$, dove $a=\frac{\sin\left(z\right)}{z}$, $b=\frac{1}{2}$, $c=0$ e $x=z$

Applicare la formula: $\lim_{\theta \to0}\left(\frac{\sin\left(\theta \right)}{\theta }\right)$$=1$, dove $h=z$

Applicare la formula: $a^b$$=a^b$, dove $a=1$, $b=\frac{1}{2}$ e $a^b=\sqrt{1}$