Sine Periodicity
1. **State the problem:** Evaluate $\sin(2\pi + 30)$.
2. **Recall the sine addition formula and periodicity:** The sine function has a period of $2\pi$, meaning $\sin(\theta + 2\pi) = \sin(\theta)$ for any angle $\theta$.
3. **Apply periodicity:**
$$\sin(2\pi + 30) = \sin(30)$$
4. **Evaluate $\sin(30)$:**
$\sin(30) = \frac{1}{2}$.
5. **Final answer:**
$$\sin(2\pi + 30) = \frac{1}{2}$$
This means the sine of $2\pi + 30$ is the same as the sine of $30$, which is $\frac{1}{2}$.