Practice:Latex

$$\alpha$$

$$\beta$$

$$\Alpha$$

$$\Lambda$$

\omega /$$\Omega$$

$$\sqrt{24}$$

$$x^2+y^3$$

$$x^{x^2+y^2}$$

$$x_1^2+y_2^3$$

$$x_{11}$$

$$x_{1_1}$$

$$\int{sinx}~dx$$

$$\iint{x^5}dx~dy$$

$$\int_0^2{sinx}~dx$$

$$1/2$$

$$\frac{1}{45}$$

$$\frac{x^2+sinx+x^7}{x^3-3!}$$

$$\frac{dy}{dx}$$

$$\frac{d^2y}{dt^2}+\omega^2y=0$$

$$a\neq b$$

$$\hbar$$

$$\triangle{x}\triangle{p}\geq\hbar$$

$$\begin{pmatrix}2&3&8\\-2&-9&8\\2&6&5\end{pmatrix}$$