$\int\frac{sin\left(x\right)}{cos^2\left(x\right)-cos^3\left(x\right)}dx$

$\frac{5a^3}{a}$

$\sin\left(x+y\right)=\cos\left(x\right)$

$\left(8x^2y+m^3\right)^2$

$\left(\cos\left(x\right).\cot\left(x\right).\sin^2\left(x\right)+\sin^3\left(x\right)\right).\sin\left(x\right)+\cot^2\left(x\right).\sin^2\left(x\right)$

$\frac{32x^{15}}{8x^8}$

$\frac{4x^2}{25}-\frac{xy}{5}+\frac{y^2}{16}$