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4.2. Let a, b E Z, where a 0 and b 0. Prove that if alb and bla, then a = b or a = -b. -b.

4.2. Let a, b E Z, where a 0 and b 0. Prove that if alb and bla, then a = b or a = -b. -b.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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4.2 

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4.1. Let a and 6 be integers, where a # 0. Prove that if a 6, then a|b 4.2. Let a, b E Z, where a 0 and b 0. Prove that if ab and bla, then a = b or a = -6. 4.3. By Result 4.8 0, for integers x and y, 3 xy if and only if 3x or
Transcribed Image Text:4.1. Let a and 6 be integers, where a # 0. Prove that if a 6, then a|b 4.2. Let a, b E Z, where a 0 and b 0. Prove that if ab and bla, then a = b or a = -6. 4.3. By Result 4.8 0, for integers x and y, 3 xy if and only if 3x or
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