Let X be a normed space and let 0x0 EX. Show that there is f = X* such that f(x) = 1 and ||f|| = 1/||xo||·

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.5: Rational Functions
Problem 50E
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2. Let X be a normed space and let 0x0 € X. Show that there is f = X* such that
f(x) = 1 and ƒ || = 1/||xo||.
Transcribed Image Text:2. Let X be a normed space and let 0x0 € X. Show that there is f = X* such that f(x) = 1 and ƒ || = 1/||xo||.
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