i) show that a closed interval is a closed set;
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.8: Solving Absolute Value Equations And Inequalities
Problem 3E
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Let, is any closed interval.
A set is closed if it's complement is open then is defined.
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