$$f\left(x\right)=\left(x-1\right)^{-1}$$

$$x^2-3x-4<0$$

$$y'''-y'=0$$

$$\left(\frac{x}{3}+\frac{xy}{2}\right)\left(\frac{x}{3}-\frac{xy}{2}\right)$$

$$\cos\left(\arctan\left(\frac{12}{5}\right)+\arcsin\left(\frac{3}{5}\right)\right)$$

$$y=\log\left(2-4x^3\right)$$

$$3x-2\left(4x-7\right)>9xe$$