$$\frac{1}{x}-\frac{1}{x+1}=\frac{1}{6}$$

$$\frac{3}{4}x-5=1$$

$$\left(1-\frac{1}{3}xy\right)^2$$

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

$$\frac{dy}{dt}=7t^5$$

$$-524+-973$$

$$2\cdot\left(\cot\left(x\right)\right)^2$$