Answer
$\dfrac{1}{2}$
Work Step by Step
We know that the trigonometric function has the value:
$\sin 30^{\circ}=\sin \dfrac{\pi}{6} =\dfrac{1}{2}$
We can get this from the unit circle, or by using a calculator.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 5 - Trigonometric Functions - Chapter Test - Page 460: 7
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