Let A = {1, 2, 3, 4, 5} and B = {0, 1, 2, 3, 4}. a) List all the ordered pairs in the relation R = a + b = 5 on A. b) List all the ordered pairs in the relation R = (a, b) on A. c) List all the ordered pairs in the relation R = a < b from A to B.
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