Applicare la formula: $a+\frac{b}{c}$$=\frac{b+ac}{c}$, dove $a=3\sqrt{t}$, $b=12\sin\left(3t\right)^2$, $c=t$, $a+b/c=\frac{12\sin\left(3t\right)^2}{t}+3\sqrt{t}$ e $b/c=\frac{12\sin\left(3t\right)^2}{t}$

Applicare la formula: $x\cdot x^n$$=x^{\left(n+1\right)}$, dove $x^nx=3\sqrt{t}t$, $x=t$, $x^n=\sqrt{t}$ e $n=\frac{1}{2}$

Applicare la formula: $\frac{a}{b}+c$$=\frac{a+cb}{b}$, dove $a/b+c=\frac{1}{2}+1$, $a=1$, $b=2$, $c=1$ e $a/b=\frac{1}{2}$

Applicare la formula: $1x$$=x$, dove $x=2$

Applicare la formula: $a+b$$=a+b$, dove $a=1$, $b=2$ e $a+b=1+2$