Practice:Mathematical symbols

$$\alpha$$

$$\beta$$

$$\lambda$$

$$\omega$$

$$\sqrt{24}$$

$$x^2+y^3$$

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

$$x_1^2+y_1^2$$

$$C_6H_{12}O_6$$

$$\int{x^2}dx$$

$$\int{sinx}~dx$$

$$\int_0^2{x^3}~dx$$

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

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

$$\frac{1}{2}$$

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

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

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

$$a\neq b$$

$$\hbar$$

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

$$\begin{pmatrix}2&3&9\\-2&5&-1\\2& 7&9\end{pmatrix}$$