MENU
Question -

If A = { 1, 2, 3}, show that a ono-one function f : A тЖТ A must be onto.



Answer -

Since f is one-one, three elements of {1, 2, 3} must be taken to 3 different elements of the co-domain {1, 2, 3} under f.
Hence, f has to be onto.

Comment(S)

Show all Coment

Leave a Comment

Free - Previous Years Question Papers
Any questions? Ask us!
×