Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 6 - Analytic Trigonometry - Section 6.3 Trigonometric Equations - 6.3 Assess Your Understanding - Page 488: 46

Answer

$0.93,5.36$

Work Step by Step

Use a calculator, $cos\theta=0.6 \Longrightarrow \theta=cos^{-1}0.6\approx0.93$ and $2\pi-0.927\approx5.36$ in $[0,2\pi)$.
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