Answer
$\text{Quadrant I}$
Work Step by Step
According to the image below:
$\cos{\theta}\gt0$ in Quadrants I and IV
$\tan{\theta}\gt0$ in Quadrants I and III
Hence, the angle must lie in quadrant I.
Precalculus (10th Edition)
by Sullivan, Michael
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 - Page 394: 30
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