y) ∈ R mean
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
Let A = {4, 5, 6} and B = {5, 6, 7} and define relations R,
S, and T from A to B as follows:
For all (x, y) ∈ A × B,
(x, y) ∈ R means that x ≥ y.
(x, y) ∈ S means that x − y
2 is an integer.
T = {(4, 7), (6, 5), (6, 7)}.
a. Draw arrow diagrams for R, S, and T .
b. Indicate whether any of the relations R, S, and T are
functions.
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