No. 12 D
No. 13 A
A = {5, 6, 7, 8, 9}
B = {5, 7, 11, 13}
A U B = {5, 6, 7, 8, 9, 11, 13}
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Verified answer
No. 12 D
No. 13 A
A = {5, 6, 7, 8, 9}
B = {5, 7, 11, 13}
A U B = {5, 6, 7, 8, 9, 11, 13}