1. Prove that for all x, y ER, max (x, y) = x+y+lx-yl 2 x+y-lx-yl 2 and min (x, y}=-

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 12T
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1. Prove that for all x, y ER, max (x, y) =
x+y+lx-yl
2
and min (x, y) =
x+y-lx-yl
2
Transcribed Image Text:1. Prove that for all x, y ER, max (x, y) = x+y+lx-yl 2 and min (x, y) = x+y-lx-yl 2
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