Applicare la formula: $\int_{a}^{b} cxdx$$=c\int_{a}^{b} xdx$, dove $a=\frac{\pi }{6}$, $b=\frac{\pi }{3}$, $c=16$ e $x=\sec\left(x\right)^4$

Applicare la formula: $\int\sec\left(\theta \right)^ndx$$=\frac{\sin\left(\theta \right)\sec\left(\theta \right)^{\left(n-1\right)}}{n-1}+\frac{n-2}{n-1}\int\sec\left(\theta \right)^{\left(n-2\right)}dx$, dove $n=4$

Applicare la formula: $\int\sec\left(\theta \right)^2dx$$=\tan\left(\theta \right)+C$

Applicare l'identità trigonometrica: $\sin\left(\theta \right)\sec\left(\theta \right)^n$$=\tan\left(\theta \right)\sec\left(\theta \right)^{\left(n-1\right)}$, dove $n=3$

Applicare la formula: $\left[x\right]_{a}^{b}$$=eval\left(x,b\right)-eval\left(x,a\right)+C$, dove $a=\frac{\pi }{6}$, $b=\frac{\pi }{3}$ e $x=\frac{\tan\left(x\right)\sec\left(x\right)^{2}}{3}+\frac{2}{3}\tan\left(x\right)$