1.

If U = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11},
A = {2, 4, 7},
B = {3, 5, 7, 9, 11} and
C = {7, 8, 9, 10, 11}.
compute: (A U) (B C)

A. {7}
B. {9}
C. {6}
D. {5}
Answer» B. {9}


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