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ethompsonn
Find A ∩ B if A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}. Ø {7} {3, 4, 5, 7, 9, 10, 13, 17}
Take common ( That's what intersection means ) So tell me what is common in Set A and B ? @ethompsonn
A ∩ B = The common elements in A and B ..