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प्रश्न
Answer the following:
If U = {x/x ∈ N, 1 ≤ x ≤ 12}, A = {1, 4, 7, 10}, B = {2, 4, 6, 7, 11}, C = {3, 5, 8, 9, 12} Write down the set A – B
उत्तर
U = {x/x ∈ N, 1 ≤ x ≤ 12}
= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
A = {1, 4, 7, 10}, B = {2, 4, 6, 7, 11}, C = {3, 5, 8, 9, 12}
A – B = {1, 4, 7, 10} – {2, 4, 6, 7, 11}
= {1, 10}
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