Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 10 - Radical Expressions and Equations - 10-6 Trigonometric Ratios - Practice and Problem-Solving Exercises - Page 638: 36


a) i) 0.9848 ii) 0.9063 b) The pairs' values are equal c) The angles are complementary and sin of an angle equals the cos of its complement

Work Step by Step

Use a calculator sin80 = 0.9848 cos25 = 0.9063 sin65 = 0.9063
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