Precalculus (6th Edition)

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

Chapter 5 - Trigonometric Functions - 5.1 Angles - 5.1 Exercises - Page 505: 81

Answer

$320^{\circ}$

Work Step by Step

We add $360^{\circ}$ to the given negative angle measure ($-40^{\circ}$) to obtain the angle of least positive measure. $-40^{\circ}+360^{\circ}=320^{\circ}$
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