## Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole

# Appendix A - A.3 - Inequalities - Exercises - Page 545: 31

#### 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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