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If A = {1, 2, 3, 4, 5 }; B = {4, 5, 6, 7}, then find A – B and B – A. Are they equal? |
Answer» Given sets are A = {1, 2, 3, 4, 5} and B = {4, 5, 6, 7} A – B = {1, 2, 3, 4, 5} – {4, 5, 6, 7} = {1, 2, 3} B – A = {4, 5, 6, 7} – {1, 2, 3, 4, 5} = {6, 7} ∴ No, A – B ≠ B – A. |
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