In Exercises 7578, for the sets A = 52, 4, 6, 86, B = 51,
Chapter 2, Problem 2.1.75(choose chapter or problem)
In Exercises 7578, for the sets A = 52, 4, 6, 86, B = 51, 3, 7, 9, 13, 216, C = 5 6, and D = {#, &, %, ,*6.Determine n(A).
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