$\frac{1+\cos\left(t\right)}{\sin\left(t\right)}-\frac{\sin\left(t\right)}{1+\cos\left(t\right)}=2\cot\left(t\right)$

$\int2\pi\cdot x\cdot\left(\sqrt{x-1}-1\right)dx$

$\sqrt{2025}$

$x^2-30x+222$

$\lim_{x\to\frac{1}{4}}\left(\frac{2x^2+x^3}{x}\right)^{\frac{1}{4}}$

$2m^3\left(5m^5-2m^3+3m+7m^4\right)$

$5-4+9+2-2-3-7-12-4$