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OpenStudy (anonymous):
In Exercises 75–78, for the sets A = {2, 4, 6, 8}, B = {1, 3, 7, 9, 13, 21,}, C = { }, and D = {#, &, %, □, *}. 75. Determine n(A). 78. Determine n(D).
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OpenStudy (anonymous):
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