i) show that a closed interval is a closed set;
Advanced Engineering Mathematics
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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Transcribed Image Text:3. Try the following questions: (i) show that a closed interval is a closed set; (ii)
show that the set of integers Z is a closed set; (iii) based on your proof of part (i),
find an unbounded set that has no limit point.
I have done part (i) in class, I put it here to make sure that you understand my
proof. Make sure that eventually you can prove it without looking at my proof.
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Step 1
Note: According to bartleby we have to do only first question please upload the question separately.
Let, is any closed interval.
A set is closed if it's complement is open then is defined.
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