Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 6 - Trigonometric Functions - 6.3 Properties of the Trigonometric Functions - 6.3 Assess Your Understanding: 79

Answer

$1$

Work Step by Step

$\sin \alpha \times csc\alpha =\sin \alpha \times \dfrac {1}{\sin \alpha }=1$ Therefore, $\sin {80^o}\times \csc{80^o}=1$
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