Let A = {2, 3, 8, 10, 13} and B = {2, 3, 4, 6, 12, 13}. What is A ∩ B?
Note
A ∩ B means the elements common to both sets. Check each element and keep only those appearing in both A and B. The intersection keeps only the elements shared by both sets. Elements that appear in just one set are left out. The correct answer is {2, 3, 13}, which matches the calculation or reasoning shown.