if a=(2,4,6,8,10)and b=(3,6,9,12,15)find A-B,B-A,AintersectionB,AunionB
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Answer:
1) A - B = {2 , 4 , 8 , 10}
2) B - A = {3 , 9 , 12 , 15}
3) A ∩ B = {6}
4) A ∪ B = {2 , 3 , 4 , 6 , 8 , 9 , 10 , 12 , 15}
Step-by-step explanation:
Given,
A = {2 , 4 , 6 , 8 , 10}
B = {3 , 6 , 9 , 12 , 15}
To Find :-
1. A - B
2. B - A
3. A ∩ B
4. A ∪ B
Solution :-
1) A - B
= {2 , 4 , 6 , 8 , 10 } - {3 , 6 , 9 , 12 , 15}
= {2 , 4 , 8 , 10}
∴ A - B = {2 , 4 , 8 , 10}
2) B - A
= {3 , 6 , 9 , 12 , 15} - {2 , 4 , 6 , 8 , 10}
= {3 , 9 , 12 , 15}
∴ B - A = {3 , 9 , 12 , 15}
3) A ∩ B
= {2 , 4 , 6 , 8 , 10} ∩ {3 , 6 , 9 , 12 , 15}
= {6}
∴ A ∩ B = {6}
4) A ∪ B
= {2 , 4 , 6 , 8 , 10} ∪ {3 , 6 , 9 , 12 , 15}
= {2 , 3 , 4 , 6 , 8 , 9 , 10 , 12 , 15}
∴ A ∪ B = {2 , 3 , 4 , 6 , 8 , 9 , 10 , 12 , 15}
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