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and y are positive integers, is xy ever x² + y²-1 is divisible by 4. now x+y is odd.

and y are positive integers, is xy ever x² + y²-1 is divisible by 4. now x+y is odd.

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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- If x and y are positive integers, is xy even? (1) x² + y²-1 is divisible by 4.no wan (2) x +y is odd. DS14502
Transcribed Image Text:- If x and y are positive integers, is xy even? (1) x² + y²-1 is divisible by 4.no wan (2) x +y is odd. DS14502
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