Chapter 13, Trigonometric Ratios and Functions - 13.2 Define General Angles and Use Radian Measure - 13.2 Exercises - Skill Practice - Page 863: 40

$\frac{\sqrt{3}}{2}$

1. Set the calculator in radian mode. 2. Now click $SIN$ for $\sin \frac{\pi}{3}$. 3. Then click the argument $\frac{\pi}{3}$. 4. Now click the ENTER Button. Thus, we get the answer $sin \frac{\pi}{3}=\frac{\sqrt{3}}{2}$.