# Math

If the universal set U is defined by
U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and

A = {1, 2, 3, 4 }
B = {3, 4, 5, 6, 7}

What is n(A ∩ B) ?

1. 👍 0
2. 👎 0
3. 👁 245
1. what elements are in both A and B?

{3,4}

1. 👍 0
2. 👎 0

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