1. Let's understand the expression $\frac{x}{\sin x}$. 2. This is a ratio where the numerator is $x$ and the denominator is $\sin x$, the sine of $x$. 3. You get $\frac{x}{\sin x}$ simply by dividing the value $x$ by the value $\sin x$. 4. For example, if $x = \frac{\pi}{2}$, then $\sin x = 1$, so $\frac{x}{\sin x} = \frac{\pi/2}{1} = \frac{\pi}{2}$. 5. This expression is often used in limits and trigonometric simplifications, especially near $x=0$ where $\frac{x}{\sin x} \to 1$.