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


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 = $\frac{15}{17}$
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