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Let A = {All Prime numbers less than 10} and B = {all odd number less than 10}. Find (A – (A ∩ B)).

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Here, A = {2, 3, 5, 7,} and B = {1, 3, 5, 7, 9}.

A ∩ B = {2, 3, 5, 7} ∩ {1, 3, 5, 7, 9} = {3, 5, 7} 

A – (A ∩ B) = {2, 3, 5, 7} – { 3, 5, 7} = {2}

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