$\left(-ab^2c\right)\left(3a^2bc\right)\left(2abc^2\right)$

$\sqrt[12]{x^8y^8}$

$7\left(6t\right)$

$\lim_{x\to\infty}\left(\frac{1}{2}ln\left(x+1\right)-\frac{1}{4}ln\left(x^2+1\right)+\frac{1}{2}\arctan\left(x\right)\right)$

$\sin2x+7\sin x=0$

$\int tan^9xdx$

$\int\left(2x-4\right)cos\left(x\right)\left(x^2-4x\right)dx$