$$3 - 8 s + 4 s + 9$$

$$\frac{\left(csc^2\left(x\right)-1\right)}{csc^2\left(x\right)-csc\left(x\right)}=1+sin\left(x\right)$$

$$\sqrt{4y+1}+5=y$$

$$\int_{-1}^8\left(\frac{\left(\sqrt{x}+8\right)^2}{12\sqrt{x}}\right)dx$$

$$\frac{dy}{dx}=\frac{xy}{x^{2}-2y^{2}}$$

$$\lim_{x\to0}\left(\frac{\sqrt{3x-2}-\sqrt{2x}}{x-2}\right)$$

$$49-14z-z^2$$