For each a Є Z, if a ‡0 (mod 3), then a² = 1 (mod 3).

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.7: Introduction To Coding Theory (optional)
Problem 18E
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For each a Є Z, if a ‡0 (mod 3), then a² = 1 (mod 3).
Transcribed Image Text:For each a Є Z, if a ‡0 (mod 3), then a² = 1 (mod 3).
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