Precalculus (6th Edition) Blitzer

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

Chapter 5 - Section 5.1 - Verifying Trigonometric Identities - Concept and Vocabulary Check - Page 658: 2

Answer

See below.

Work Step by Step

The missing words: "sine", "cosine".
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