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2.1 Then state which of the following statements are true or false, in either ca substantiate. (a) 1 is a limit point of D. (b) 2 is not a limit point of D. (c) 3 is not a limit point of D.

2.1 Then state which of the following statements are true or false, in either ca substantiate. (a) 1 is a limit point of D. (b) 2 is not a limit point of D. (c) 3 is not a limit point of D.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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2 Let X = {1,2,3,4,5), = {0. (1), (3, 4), (1, 3, 4), (2,3,4,5)) and D = {1,2,3). 2.1 Then state which of the following statements are true or false, in either ca substantiate. (a) 1 is a limit point of D, (b) 2 is not a limit point of D. (c) 3 is not a limit point of D. 2.2 Find the interior of {2,4} 2.3 Find the closure of {1} 2.4 Find the boundary of (3.4)
Transcribed Image Text:2 Let X = {1,2,3,4,5), = {0. (1), (3, 4), (1, 3, 4), (2,3,4,5)) and D = {1,2,3). 2.1 Then state which of the following statements are true or false, in either ca substantiate. (a) 1 is a limit point of D, (b) 2 is not a limit point of D. (c) 3 is not a limit point of D. 2.2 Find the interior of {2,4} 2.3 Find the closure of {1} 2.4 Find the boundary of (3.4)
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