1. Tardigrade
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  4. If μ= 1,2,3,5,6,7 A= 1,2,3 and B= 2,6, 7 then (A ∩ B)c= ?

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Q. If $\mu=\{1,2,3,5,6,7\}, A=\{1,2,3\}$ and $B=\{2,6$, 7\}, then $(A \cap B)^c=$ ?

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Solution:

$\operatorname{Use}(A \cap B)^{\prime}=\mu-(A \cap B^{\prime})$.