Answer
$0.74\ rad$
Work Step by Step
Step 1. Graph the function $f(x)=cos(x)-x$ as shown in the figure.
Step 2. Find the x-intercepts within $[0,2\pi)$ which are the solutions: $0.74\ rad$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 5 - Section 5.5 - Trigonometric Equations - Exercise Set - Page 705: 148
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