If A = {1, 2, 3, 4, 5} and B = {4, 5, 6, 7}, which set is A intersection B?

Answer and explanation

Correct answer: B. {4, 5}, the elements that belong to both of the sets

  1. Step 1: List the elements that appear in both A and B. Step 2. Only 4 and 5 are in both. Answer: {4, 5}. Why not the others: {1, 2, 3, 6, 7} is the symmetric difference; the full list is the union; {1, 2, 3} is A minus B.

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