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प्रश्न
Given, universal set = {x : ∈ N, 10 ≤ x ≤ 35}.
B = {x : x > 29} Find: B'.
उत्तर
Universal set = {x : x ∈ N, 10 ≤ x ≤ 35}
= {10, 11, 12, 13, 14, 15,....,34, 35}
B = {x : x > 29}
= {30, 31, 32, 33, 34, 35}
B' = {10, 11, 12, 13, 14, 15,.....,29}
= {x : x ≤ 29}
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