4. Let f be differentiable on R with a = sup{|f'(x)| : x € R} < 1. (i) Pick a number so € R and inductively define sn = f(sn-1) for n ≥ 1. Prove that {n} is a convergent sequence in R. (ii) Show that f has a fixed point, that is, f(s) = s for some s € R.
4. Let f be differentiable on R with a = sup{|f'(x)| : x € R} < 1. (i) Pick a number so € R and inductively define sn = f(sn-1) for n ≥ 1. Prove that {n} is a convergent sequence in R. (ii) Show that f has a fixed point, that is, f(s) = s for some s € R.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.2: Graphs Of Equations
Problem 75E
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