$$\int_{-2}^{-1}\left(\frac{1}{x\sqrt{x^2-1}}\right)dx$$

$$20+90+51u$$

$$-6-2+7+11-1$$

$$3x-2\ge8$$

$$\left(\sec\left(x\right)-\tan\left(w\right)\right)^2$$

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

$$\frac{\csc\left(x\right)-\cot\left(x\right)}{\csc\left(x\right)}+\frac{\cot\left(x\right)+\csc\left(x\right)}{\cot\left(x\right)}$$