Question

If$B = \{ a , b \}$ and f is a mapping such that $f : A \rightarrow B$ , then $A \times B$ is.

• A. {(a, 1), (3, b)}
• B. {(a, 2), (4, b)}
• C. {(1, a), (1, b), (2, a), (2, b),(3, a), (3, b), (4, a),(4, b)}
• D. None of these

Answer 1

Answer: (C)

{(1, a), (1, b), (2, a), (2, b),(3, a), (3, b), (4, a),(4, b)}