$$\int \frac { d x } { \sin ^ { 2 } x \cdot \cos ^ { 2 } x }$$
$\int \frac{1}{\left(\sin(x\left(\cos(x)\right)^{2})\right)^{2}}\mathrm{d}x$
$\frac{1}{\left(\sin(x\left(\cos(x)\right)^{2})\right)^{2}}$
