2. (This problem derives the general result that any polynomial function is of a lower asymptotic order than any exponential function.) First, we prove a special case. Suppose that we have two functions, f(n) = n² and g(n) = 2". We will prove that f(n) = O(g(n)). por (a). (c) Show that, for any n2 no, it must be the case that f(n) ≤ cog(n) = f(n+1) ≤ cog(n+1). Precisely state the argument by induction that n² = O(2"). Now, define f(n) = nk where k≥ 1, g(n) = a", where a ≥ 1.

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
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Chapter2: Mathematics For Microeconomics
Section: Chapter Questions
Problem 2.13P
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2. (This problem derives the general result that any polynomial function is of a lower asymptotic
order than any exponential function.)
First, we prove a special case. Suppose that we have two functions, f(n) = n² and g(n) = 2".
We will prove that f(n) = O(g(n)).
• port (a).
(c) Show that, for any n ≥ no, it must be the case that f(n) ≤ cog(n) = f(n+1) ≤
cog(n+1). Precisely state the argument by induction that n² = 0(2¹).
Now, define f(n) = nk where k ≥ 1, g(n) = a", where a ≥ 1.
(d) (Slightly harder). Argue that, for any k and a, there exists some n₁ such that
: (1₁+¹)* <
a.
Transcribed Image Text:2. (This problem derives the general result that any polynomial function is of a lower asymptotic order than any exponential function.) First, we prove a special case. Suppose that we have two functions, f(n) = n² and g(n) = 2". We will prove that f(n) = O(g(n)). • port (a). (c) Show that, for any n ≥ no, it must be the case that f(n) ≤ cog(n) = f(n+1) ≤ cog(n+1). Precisely state the argument by induction that n² = 0(2¹). Now, define f(n) = nk where k ≥ 1, g(n) = a", where a ≥ 1. (d) (Slightly harder). Argue that, for any k and a, there exists some n₁ such that : (1₁+¹)* < a.
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