Trigonometry (11th Edition) Clone

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

Chapter 6 - Inverse Circular Functions and Trigonometric Equations - Section 6.3 Trigonometric Equations II - 6.3 Exercises - Page 280: 57c

Answer

The eardrum is moving outward during the following time intervals: $(0.00455, 0.00909)\cup(0.01364, 0.01818)\cup (0.02273, 0.02727)$
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Work Step by Step

When the pressure is positive, the eardrum will be pushed inward. When the pressure is negative, the eardrum will be pulled outward. We can use the graph to determine the time intervals when the pressure is negative: $(0.00455, 0.00909)\cup(0.01364, 0.01818)\cup (0.02273, 0.02727)$ The eardrum is moving outward during the following time intervals: $(0.00455, 0.00909)\cup(0.01364, 0.01818)\cup (0.02273, 0.02727)$
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