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

$$2\ln\left(x-5\right)=\ln\left(x+13\right)+\ln13$$

$$-7\cdot x<7$$

$$\int_0^3\left(\frac{4}{3}t^3-\frac{3}{2}t^2+\frac{2}{3}t\right)dx$$

$$\int\frac{1}{x\sqrt{36-4x^2}}dx$$

$$\frac{\left(2x^3+5x^2+x\right)}{x}$$

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