3. Examples. Justify your answers briefly. (a) Let A be the family of functions defined everywhere on R so that lim f(x) converges. Show that A is an algebra of functions. (b) Give an example of a set with a finite number of points that is not se- quentially compact, or else explain why no such set exists. 00 (c) Give an example of series an and > bn that are divergent, but so n=0 n=0 00 that an converges. n=0 n=0
3. Examples. Justify your answers briefly. (a) Let A be the family of functions defined everywhere on R so that lim f(x) converges. Show that A is an algebra of functions. (b) Give an example of a set with a finite number of points that is not se- quentially compact, or else explain why no such set exists. 00 (c) Give an example of series an and > bn that are divergent, but so n=0 n=0 00 that an converges. n=0 n=0
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.2: Exponential Functions
Problem 71E
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