$12x^4y\left(-12x^2y^5\right)$

$\lim_{x\to infinity}\left(\frac{\left(ln\left(x^8-4\right)\right)}{ln\left(x\right)\cdot cos\left(\frac{1}{x}\right)}\right)$

$\int\left(\frac{2x}{\left(x^2+4\right)\left(x-1\right)}\right)dx$

$\tan\left(x\right)+\cot\left(x\right)=\frac{\cot\left(x\right)}{1-\sin^2\left(x\right)}$

$\int\left(r^2\left(\frac{r^3}{24}+2\right)^7\right)dr$

$4\cdot\left(-1\right)-\left(-1\right)-\left(-1\right)$

$8c-4-2c+5$