Tell whether the following sets A are (i) open or closed, (ii) connected, (ii) compact. Find (iv) the limit points of A, (v) int(A), (vi) the boundary of A. A= rational numbers A = integers

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.4: Definition Of Function
Problem 55E
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Tell whether the following sets A are (i) open or closed, (ii) connected,
(ii) compact. Find (iv) the limit points of A, (v) int(A), (vi) the boundary of A.
A= rational numbers
A = integers
Transcribed Image Text:Tell whether the following sets A are (i) open or closed, (ii) connected, (ii) compact. Find (iv) the limit points of A, (v) int(A), (vi) the boundary of A. A= rational numbers A = integers
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