Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 7 - Analytic Trigonometry - 7.4 Trigonometric Identities - 7.4 Assess Your Understanding - Page 476: 61

Answer

See explanations.

Work Step by Step

Step 1. To prove the given identify, we need to prove $tan\theta+sec\theta-1=(tan\theta-sec\theta+1)(tan\theta+sec\theta)$ Step 2. Expand the right side to get $RHS=tan^2\theta-sec^2\theta+tan\theta+sec\theta=tan\theta+sec\theta-1=LHS$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.

GradeSaver will pay $15 for your literature essays
GradeSaver will pay $25 for your college application essays
GradeSaver will pay $50 for your graduate school essays – Law, Business, or Medical
GradeSaver will pay $10 for your Community Note contributions
GradeSaver will pay $500 for your Textbook Answer contributions