Question

Find A ∩ B if A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}.
a)Ø
b){7}
c){3, 4, 5, 7, 9, 10, 13, 17}

Answer 1

b){7}

Answer 2

because is the only common number BETWEEN A and B