Precalculus (6th Edition)

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

Chapter 5 - Trigonometric Functions - 5.2 Trigonometric Functions - 5.2 Exercises - Page 520: 115

Answer

I

Work Step by Step

Because $\sec\theta\gt0$ in quadrants I and IV and $\csc\theta\gt0$ in quadrants I and II, both conditions are met only in quadrant I.
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