Answer
$(-2,3)$
Work Step by Step
Step 1. Graph the intervals on a number line as shown in the figure.
Step 2. Find the union of the two intervals as
$(-2,1]\cup [-1,3)=(-2,3)$
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 P - Review Exercises - Page 145: 158
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