Answer
$ -0.62,0.81$
Work Step by Step
See graph for $y=x^2-3cos(2x)-x$, we can find the zero(s) $x=-0.62,0.81$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
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: 90
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