Applicare la formula: $\int\frac{n}{\sqrt{a-b^2}}dx$$=n\arcsin\left(\frac{b}{\sqrt{a}}\right)+C$, dove $a=4$, $b=x$ e $n=2$

Applicare la formula: $a^b$$=a^b$, dove $a=4$, $b=\frac{1}{2}$ e $a^b=\sqrt{4}$

Applicare la formula: $\left[x\right]_{a}^{b}$$=eval\left(x,b\right)-eval\left(x,a\right)+C$, dove $a=0$, $b=2$ e $x=2\arcsin\left(\frac{x}{2}\right)$