2. Consider R² with the usual definition of lines, but with distance function d = [√(x2-x₁) + √(2-₁)]². Show that the triangle inequality is not true in this geometry by finding a triangle ABC such that AB + BC < AC.
2. Consider R² with the usual definition of lines, but with distance function d = [√(x2-x₁) + √(2-₁)]². Show that the triangle inequality is not true in this geometry by finding a triangle ABC such that AB + BC < AC.
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter1: Line And Angle Relationships
Section1.4: Relationships: Perpendicular Lines
Problem 27E
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