4. Let E=]0,4[U]5, 6[ . (a) Prove that xo (b) Decide whether E is open, closed or compact, and determine the 3 is an interior point of E. • set E° of the interior points of E, • set ƏE of the boundary points of E , • set E' of the limit points of E and • the closure E of E.
4. Let E=]0,4[U]5, 6[ . (a) Prove that xo (b) Decide whether E is open, closed or compact, and determine the 3 is an interior point of E. • set E° of the interior points of E, • set ƏE of the boundary points of E , • set E' of the limit points of E and • the closure E of E.
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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