Question

For a set A, A × A contains 16 elements and two of its elements are (1, 3) and (0, 2). Find the elements of A

Answer 1

Given A × A contains 16 elements.

∴ A contains 4 elements.

Also, (1, 3) and (0, 2) are two elements of A × A.

∴ A = {0, 1, 2, 3}