Question

Let A = 1, 2, 3, 4, B = 2, 4, 6, 8, C = 3, 6, 9, 12. How many elements are in A? How many elements are in B? How many elements are in C? Determine the pairs (A, B), (A, C), (B, C).

Answer 1

The set A has 9 elements, set B has 9 elements, and set C has 9 elements. The pairs are (A, B), (A, C), and (B, C).

Step-by-step explanation:

A has 9 elements, B has 9 elements, and C has 9 elements. The pairs are as follows:

(A, B) = {(2, 2), (4, 4), (6, 6), (8, 8)}

(A, C) = {(2, 3), (4, 6), (6, 9), (8, 12)}

(B, C) = {(2, 3), (4, 6), (6, 9), (8, 12)}