$\lim_{x\to1}4x^2$

$\frac{64x^3+1}{16x^2-4x+1}$

$\int y^2e^{y^3}dy$

$\int_{-1}^3x^3+2dx$

$6\cdot6\cdot6\cdot6\cdot6\cdot6\cdot6\cdot6\cdot6\cdot6$

$\frac{2x^3-3x^2+5x-7}{x+1}$

$\frac{\sin\left(x\right)}{1-\cos\left(x\right)}+\frac{1-\cos\left(x\right)}{\sin\left(x\right)}=\csc\left(x\right)$