Consider the statement n2 + 1 ≥ 2n where n is an integer in [1, 4].
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.2: Mathematical Induction
Problem 7E
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Consider the statement n2 + 1 ≥ 2n where n is an integer in [1, 4].
Is the correct proof of the given statement is "For n = 1, 12 + 1 = 2 ≥ 2 = 21; for n = 2, 22 + 1 = 5 ≥ 4 = 22; for n = 3, 32 + 1 = 10 ≥ 8 = 23; and for n = 4, 42 + 1 = 17 ≥ 16 = 24."
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