$2\sin\left(x\right)+\cos^2\left(x\right)=2$

$\left(4x^2y^3z\right)\left(xy+4x^2y+27\right)$

$\int\csc\left(\frac{3}{4}x\right)\cot\left(\frac{3}{4}x\right)dx$

$-7x+15\le2\left(x-6\right)$

$\left(x+6\right)^2+\left(4x-2\right)^2=\left(5x\right)^2$

$\frac{a}{b}+\frac{b}{a}-\frac{c}{d}$

$1+-10\cdot8$