a) ⌊6.2⌋ ⌈3.4⌉ = ? b) 2 ⌊?⌋ = ? c) ⌊?⌋ = ⌈?⌉ for all a ∈ ℝ. True or False? Give a counterexample if false. d) ⌊?⌋ = ⌈?⌉ – 1 for all a ∈ R – ℤ. True or False? Give a counterexample if false. e) Is 80 congruent to 5 modulo 17? Why, or why not?
a) ⌊6.2⌋ ⌈3.4⌉ = ? b) 2 ⌊?⌋ = ? c) ⌊?⌋ = ⌈?⌉ for all a ∈ ℝ. True or False? Give a counterexample if false. d) ⌊?⌋ = ⌈?⌉ – 1 for all a ∈ R – ℤ. True or False? Give a counterexample if false. e) Is 80 congruent to 5 modulo 17? Why, or why not?
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.5: Congruence Of Integers
Problem 40E: In the congruences axb(modn) in Exercises 4053, a and n may not be relatively prime. Use the results...
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a) ⌊6.2⌋ ⌈3.4⌉ = ?
b) 2 ⌊?⌋ = ?
c) ⌊?⌋ = ⌈?⌉ for all a ∈ ℝ. True or False? Give a counterexample if false.
d) ⌊?⌋ = ⌈?⌉ – 1 for all a ∈ R – ℤ. True or False? Give a counterexample if false.
e) Is 80 congruent to 5 modulo 17? Why, or why not?
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