onal the (i) Int(A) (ii) (A) and A (iii) Whether or not A is open or closed.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.2: Graphs Of Equations
Problem 23E
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Ex 8. Consider the set A = {2} x Q, which is a subset of R2, where Q is the set of
rationals. Determine the following:
(i) Int(A) (ii) l(A) and A (iii) Whether or not A is open or closed.
Transcribed Image Text:Ex 8. Consider the set A = {2} x Q, which is a subset of R2, where Q is the set of rationals. Determine the following: (i) Int(A) (ii) l(A) and A (iii) Whether or not A is open or closed.
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