(b) Let A be the collection of all positive-valued functions in C[0, 1]. Is A open or closed? What is the set of limit points of A?

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let C[0, 1] denote the collection of all continuous real-valued functions on the
supæ¤[0,1] |ƒ (x) — g(x)| for functions f, g €
interval [0, 1], and define d(f,g)
C[0, 1].
=
(a) Prove that (C[0, 1], d) is a metric space.
(b) Let A be the collection of all positive-valued functions in C[0, 1]. Is A open
or closed? What is the set of limit points of A?
Transcribed Image Text:Let C[0, 1] denote the collection of all continuous real-valued functions on the supæ¤[0,1] |ƒ (x) — g(x)| for functions f, g € interval [0, 1], and define d(f,g) C[0, 1]. = (a) Prove that (C[0, 1], d) is a metric space. (b) Let A be the collection of all positive-valued functions in C[0, 1]. Is A open or closed? What is the set of limit points of A?
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