Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.5 - Graphs of Sine and Cosine Functions - Exercise Set - Page 598: 112

Answer

does not make sense

Work Step by Step

It would be easier to graph the cosine function by starting at the maximum or minimum point. Starting at the x-axis would be harder to graph, since this is where the inflection point in the graph happens.
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