Which of the following two sets are equal?
A. A = {1, 2} and B = {1}
B. A = {1, 2} and B = {1, 2, 3}
C. A = {1, 2, 3} and B = {2, 1, 3}
D. A = {1, 2, 4} and B = {1, 2, 3}
Answer:A
Which of the following two sets are equal?
A. A = {1, 2} and B = {1} B. A = {1, 2} and B = {1, 2, 3} C. A = {1, 2, 3} and B = {2, 1, 3} D. A = {1, 2, 4} and B = {1, 2, 3}
Explanation: Two set are equal if and only if they have the same elements.