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 meansthat 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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