Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 1 - Test - Page 44: 19a

Answer

I Quadrant

Work Step by Step

$\cos\theta$ is positive in I and IV quadrants. $\tan\theta$ is positive in I and III quadrants. Both are positive in I quadrant only. $\cos\theta \gt 0$, $\tan\theta \gt 0$ lies in I quadrant only.
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