Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Appendix A - A.3 - Inequalities - Exercises - Page 554: 29

Answer

not true if a= -3 and b= -2

Work Step by Step

$a\lt $b a = -3 b = -2 a^2= 9 b^2 = 4 $9 \gt $4 hence proved
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