$\frac{4x}{3}+\frac{2}{9}<\frac{5x}{3}+\frac{x}{2}+\frac{5}{18}$

$xyln\left(y\right)dx-\left(x-1\right)^{-\frac{1}{2}}dy=0$

$\left(\sec^2\left(x\right)-1\right)\cdot\cos^2\left(x\right)=\sin^2\left(x\right)$

$\log\left(5-x\right)-\log\left(-x-4\right)=1$

$\int\left(\left(x^2+8x+4\right)^5\left(2x+8\right)\right)dx$

$2bc+3b-12c-15c+7bc-13b$

$\theta\theta+\cos\theta$