Question

6. Let A = {1, 2, 3}, B = {4, 5} and let
f= {1, 4), (2,5), (3,5)}. Show that f is an
onto function from A to B.​

Answer 1

Answer:

Solution: Domain = {1, 2, 3} = A

Range = {4, 5}

The element from A, 2 and 3 has same range 5.

So f : A -> B is an onto function.

Step-by-step explanation: