(a) (-1, 1) U (10, 11) (b) (-∞, 1] Please include interval notation
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.4: Definition Of Function
Problem 51E
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Classify each of the following subsets of R as open, closed, neither, or both. Justify your answer.
(a) (-1, 1) U (10, 11)
(b) (-∞, 1]
Please include interval notation (with a line) for (a) and (b). Thanks!
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