Question

Let A = {1, 2, 3} and B = {a, b} be two sets. Then the number of constant functions from A to B is ___________.

Answer 1

Given: Sets A = {1, 2, 3} and B = {a, b}

Two constant functions can be formed from A to B.
i.e., one is f(x) = a and other is f(x) = b

Hence, the number of constant functions from A to B is 2.