1. Let an = 5n 4n3 5 This sequence converges to L = 4 (a) Find the smallest N EN such that |an — L| < 10-4 for all n > N. (b) Show that, for all n > 12, |an - L| < 1/n. Deduce an integer M (not necessarily the smallest!) such that an - L| < 10-6 for all n > M. 1| < 10 101 a 5 (c) Prove from first principles that an converges to .
1. Let an = 5n 4n3 5 This sequence converges to L = 4 (a) Find the smallest N EN such that |an — L| < 10-4 for all n > N. (b) Show that, for all n > 12, |an - L| < 1/n. Deduce an integer M (not necessarily the smallest!) such that an - L| < 10-6 for all n > M. 1| < 10 101 a 5 (c) Prove from first principles that an converges to .
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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