Sine and inverse sine, in degrees

For trigonometry, first check the angle unit: the small D on the display means degrees. Press , type 30, , and . The sine of $\displaystyle 30^{\circ}$ is $\displaystyle \dfrac{1}{2}$, shown as a fraction. Press for the decimal: 0.5. The inverse sine is the yellow label above the sin key. Press and , type 0.5, , and : 30 degrees.

▶ Watch this step in the video (25:25)