Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 5 - Trigonometric Functions - 5.3 Trigonometric Functions Values and Angle Measures - 5.3 Exercises - Page 532: 23

Answer

$\sin 60^{\circ }$

Work Step by Step

$\cos 30^{\circ }=\sin \left( 90-30\right) ^{\circ }=\sin 60^{\circ }$
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