Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 11 - Section 11.2 - The Cosine Ratio and Applications - Exercises - Page 509: 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 = $\frac{15}{17}$
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