Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 11 - Section 11.2 - The Cosine Ratio and Applications - Exercises - Page 511: 2

Answer

cos α = $\frac{8}{17}$ cos β = $\frac{15}{17}$

Work Step by Step

cos α = $\frac{length of adjacent}{length of hypotenuse}$ cos α = $\frac{8}{17}$ Similarly cos β = $\frac{length of adjacent}{length of hypotenuse}$ cos β = $\frac{15}{17}$
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