$\ln\left(\cot\left(u\right)\right)=\ln\left(\cos\left(u\right)\right)-\ln\left(\sin\left(u\right)\right)$

$\int\frac{64}{x^2\left(x^2+16\right)}dx$

$8x-3-6x\ge10x-11$

$\int\frac{ln\left(2x^4\right)}{3x^5}dx$

$\frac{ab^3}{b^2}$

$\int x^{13}dx$

$\sqrt[6]{10m}\cdot\sqrt[8]{7^9}\cdot\sqrt[3]{9^4}\cdot\sqrt{10}$