Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 1 - Test - Page 46: 19a


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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