Let x be an integer. Using a proof by contrapositive, show that if x² - 4x + 11 is even, then x is odd.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.1: Real Numbers
Problem 26E
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Let x be an integer. Using a proof by contrapositive,
-
show that if x²
- 4x + 11 is even, then x is odd.
Transcribed Image Text:Let x be an integer. Using a proof by contrapositive, - show that if x² - 4x + 11 is even, then x is odd.
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