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+1 vote
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in Mathematics by (2.5k points)

If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10}; find 

(i) A ∪ B 

(ii) A UC 

(iii) B ∪ C 

(iv) B ∪ D 

(v) A ∪ B ∪ C 

(vi) A ∪ B ∪ D 

(vii) B ∪ C ∪ D 

1 Answer

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Best answer

A = {1, 2, 3, 4], B = {3, 4, 5, 6}, C = {5, 6, 7, 8} and D = {7, 8, 9, 10} 

(i) A ∪ B = {1, 2, 3, 4, 5, 6} 

(ii) A ∪ C = {1, 2, 3, 4, 5, 6, 7, 8} 

(iii) B ∪ C = {3, 4, 5, 6, 7, 8} 

(iv) B ∪ D = {3, 4, 5, 6, 7, 8, 9, 10} 

(v) A ∪ B ∪ C = {1, 2, 3, 4, 5, 6, 7, 8} 

(vi) A ∪ B ∪ D = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} 

(vii) B ∪ C ∪ D = {3, 4, 5, 6, 7, 8, 9, 10}

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