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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Question
Please prove the math claim for number 1 on LATEX that is overleaf and how it should be typed out using math type set

Transcribed Image Text:**1.** For any integer \( k \), \( 3 \mid (2k^2 + 1) \) if and only if \( 3 \nmid k \).
**2.** For any integer \( n \), \( n^2 + 2n + 3 \) is even if and only if \( 4 \mid (n^2 - 2n - 7) \).
This text explains conditions involving divisibility and parity for given algebraic expressions based on integer values of \( k \) and \( n \). The first statement involves divisibility by 3, and the second statement involves conditions for ensuring an expression is even, using divisibility by 4.
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