(4) For all natural numbers n, 4^n - 1 is a multiple of 3

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 66E
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(4) For all natural numbers n, 4^n - 1 is a multiple of 3

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