Answer
The statement is false. The correct statement is $\left( -\infty ,3 \right)\cup \left( -\infty ,-2 \right)=\left( -\infty ,3 \right)$.
Work Step by Step
See below:
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 - Section P.9 - Linear Inequalities and Absolute Value Inequalities - Exercise Set - Page 140: 137
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