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

Applicare la formula: $\lim_{x\to\infty }\left(\frac{a}{b}\right)$$=0$, dove $a=x$, $b=e^{2x}$, $\infty=\infty $, $a/b=\frac{x}{e^{2x}}$ e $x->\infty=x\to\infty $