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 - Exercise Set - Page 660: 75


Simplify each side of the identity by applying fundamental identities to it.

Work Step by Step

See the steps below: I. Work on each side of the equation independently. Start with the more complicated side and transform it in a step-by-step fashion until it looks exactly like the other side. II. Analyze the identity and look for the opportunities to apply the fundamental identities. III. We can then use the following method: - Factor out the greatest common factor - Separate a single term into two terms - Combine fractional expressions using the least common denominator. - Multiply numerator and denominator by a binomial factor that appears on the other side of the identity.
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