C. For numbers 11-15, use the following;
A = {3,6,9,12}, B = {1,2,3,4,5}, C = {2,4,6,8,10}
1. A U B = {1,2,3,4,5,6,9,12}
2. B U C = {1,2,3,4,5,6,8,10}
3. A - B = {6,9,12}
4. A U C = {2,3,4,6,8,9,10,12}
5. B - C = {1,3,5}
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Answers & Comments
C. For numbers 11-15, use the following;
A = {3,6,9,12}, B = {1,2,3,4,5}, C = {2,4,6,8,10}
1. A U B = {1,2,3,4,5,6,9,12}
2. B U C = {1,2,3,4,5,6,8,10}
3. A - B = {6,9,12}
4. A U C = {2,3,4,6,8,9,10,12}
5. B - C = {1,3,5}