Answer
$$x=0.824, x=-0.824$$
Work Step by Step
We graph the function $y=\cos x-x^2$ and check for zeros by seeing where the graph crosses the x-axis. The solutions are
$$x=0.824, x=-0.824$$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 1 - Precalculus Review - 1.5 Technology: Calculators and Computers - Exercises - Page 35: 6
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