Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Test - Page 647: 5


$\theta $ lies in Quadrant-III.

Work Step by Step

$\cos \theta \lt 0$ means that $\theta $ either lies in Quadrant-II or III. $\cos \theta \gt 0$ means that $\theta $ either lies in Quadrant-I or III. Thus, $\theta $ lies in Quadrant-III.
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