Answer
The calculator is in Radian Mode
Work Step by Step
The calculator is in Radian Mode. For the calculator to properly display $\sin$ 30$^{\circ}$ as 0.5 it must be set in Degree Mode.
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 2 - Acute Angles and Right Triangles - Section 2.3 Finding Trigonometric Function Values Using a Calculator - 2.3 Exercises - Page 67: 41
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