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प्रश्न
If A = {6, 7, 8, 9}, B = {4, 6, 8,10} and C = {x : x ∈ N : 2 < x ≤ 7}; Find: B - (A - C).
उत्तर
A = {6, 7, 8, 9}
B = {4, 6, 8, 10}
C = {x : x ∈ N : 2 < x ≤ 7}
= {3, 4, 5, 6, 7}
A - C = {6, 7, 8, 9} - {3, 4, 5, 6, 7}
= {8, 9}
B - (A - C) = {4, 6, 8, 10} - {8, 9}
= {4, 6, 10}
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