3. Let r and y be positive integers. 4. Let a, b, c e Z. If c divides a +b,

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.2: Arithmetic Sequences
Problem 52E
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3. Let r and y be positive integers. If r divides y and y divides r, thenr = y.
4. Let a, b, c e Z. If c divides a + b, then e divides both a and b.
Transcribed Image Text:3. Let r and y be positive integers. If r divides y and y divides r, thenr = y. 4. Let a, b, c e Z. If c divides a + b, then e divides both a and b.
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