2. Let ACR. If a is a lower bound of A, then it follows that -a is an upper bound for A.
2. Let ACR. If a is a lower bound of A, then it follows that -a is an upper bound for A.
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter9: Systems Of Linear Equations
Section9.7: Puzzle Problems
Problem 10OE
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