Question

1) Let A = {x,y,z}. Give a function f : A → A which is neither constant nor the identity function 1A. (2) Give a function g : R → {−1,0,1} which is not constant. (3) Give a function h : Q → Z whose image is Z.​

Answer 1

Explanation:

and go outside take fresh air you breathe you get answers constrate answer