Let ~R be the relation on Z given by a ~R b if and only if there exists ce Z with ged(c, 17) = 1 such that a = c²b (mod 17). (a) Show that ~R is an equivalence relation. (b) Identify the equivalence classes of ~R.

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.7: Relations
Problem 11E: Let be a relation defined on the set of all integers by if and only if sum of and is odd. Decide...
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~R
Let ~ be the relation on Z given by a ~R b if and only if there exists c € Z with
gcd (c, 17) = 1 such that a = c²b (mod 17).
(a) Show that ~R is an equivalence relation.
(b) Identify the equivalence classes of ~R.
Transcribed Image Text:~R Let ~ be the relation on Z given by a ~R b if and only if there exists c € Z with gcd (c, 17) = 1 such that a = c²b (mod 17). (a) Show that ~R is an equivalence relation. (b) Identify the equivalence classes of ~R.
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