Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 7 - Section 7.4 - Basic Trigonometric Equations - 7.4 Exercises - Page 569: 9

Answer

75.5225

Work Step by Step

Original Equation cos Θ = 1/4 Take inverse cosine Θ = arccos(1/4) Θ = 75.5225
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