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If A = {4, 5, 6}; B = {7, 8}, then show that A ∪ B = B ∪ A. |
Answer» Given sets are A = {4, 5, 6} and B = {7, 8} A ∪ B = {4, 5, 6} ∪ {7, 8} = {4, 5, 6, 7, 8}. B ∪ A = {7, 8} ∪ {4, 5, 6} = {4, 5, 6, 7, 8} ∴ A ∪ B = B ∪ A. |
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