Answer:
1. A U B = {1, 2, 3, 4, 5, 6, 7, 8, 10}
2. A n C = {7, 8}
3. B U C = {1, 2, 5, 6, 7, 8, 9, 10, 11}
sorry, I can't answer the others.
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Answer:
1. A U B = {1, 2, 3, 4, 5, 6, 7, 8, 10}
2. A n C = {7, 8}
3. B U C = {1, 2, 5, 6, 7, 8, 9, 10, 11}
sorry, I can't answer the others.