Question 489745: Let U = {3, 4, 5, 6, 7, 8} be the universal set and let A, B, and C be the following subsets:
A = {3, 6, 8}, B = {3, 5, 7}, C = {3, 5}
Which of the following is not a subset of C × C and Why?
A. {(3,3), (5,3)}
B. {(3,3), (3,5), (5,3), (5,5)}
C. {(5,5)}
D. {3,5}
Answer by chessace(471)   (Show Source):
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