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Let X={9,10,11,..} and A= {10,11,12) and metric |defined on X as d(x,y) = |x-y Give the last answer

Let X={9,10,11,..} and A= {10,11,12) and metric |defined on X as d(x,y) = |x-y Give the last answer

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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Let X={9,10,11,..} and A= {10,11,12) and metric Idefined on X as d(x.y) = |x - y Give the last answer Find interior of A (1) Find limit points of A (2) Find open ball B(10,3) (3) explain if A is dense or (4) not explain if X is open or not (5)
Transcribed Image Text:Let X={9,10,11,..} and A= {10,11,12) and metric Idefined on X as d(x.y) = |x - y Give the last answer Find interior of A (1) Find limit points of A (2) Find open ball B(10,3) (3) explain if A is dense or (4) not explain if X is open or not (5)
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