Answer
$(-\infty, -3]$ U $[3, \infty)$
Work Step by Step
$|x|\geq3$
Absolute value definition means that
$(-\infty, -3]$ U $[3, \infty)$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Appendix A - Numbers, Inequalities, and Absolute Values - A Exercises - Page A9: 48
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