Prove that limx → c f(x) = ∞ if and only if for every sequence an that is in the domain of f and converges to c (but never equal to c), we have limn → ∞ f(an) = ∞. (That is, prove a version of Relating Sequences to Functions for infinite limits. Make sure you handle both directions of the if and only if!)
Prove that limx → c f(x) = ∞ if and only if for every sequence an that is in the domain of f and converges to c (but never equal to c), we have limn → ∞ f(an) = ∞. (That is, prove a version of Relating Sequences to Functions for infinite limits. Make sure you handle both directions of the if and only if!)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 72E
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Prove that limx → c f(x) = ∞ if and only if for every sequence an that is in the domain of f and converges to c (but never equal to c), we have limn → ∞ f(an) = ∞.
(That is, prove a version of Relating Sequences to Functions for infinite limits. Make sure you handle both directions of the if and only if!)
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