Answer
See below.
Work Step by Step
Step 1. An example of an inequality that has no solution: $x^2+1\le0$
Step 2. An example of an inequality that has exactly one solution: $(x+1)^2\le0$
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 3 - Polynomial and Rational Functions - Section 3.6 Polynomial and Rational Inequalities - 3.6 Assess Your Understanding - Page 265: 84
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