Let U = {21, 22, 23, ..., 40}, A = {21, 22, 23, 24, 25},   and  Use the roster method to write the following set.A'

A. A' = {26, 27, 28, . . . , 40}
B. A' = {21, 22, 23, . . . , 40}
C. A' = {26, 28, 30, . . . , 40}
D. A' = {27, 29, 31, . . . , 39}


Answer: A

Mathematics

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