(july 18) let a (1,2,3.4 and b (1.2,3,4.5). find a function that satisies the siven property or briefly explain why no such function exists i. a function f : a --> b that is 1-1. 2. a function g: a--> b that is onto. 3. a function h : a --> a that is an equivalence relation. 4. a function g : a b such that g o f- h, where f : a a and h: a b are the a-+ b are the functions ft(1, ,4), (3,1), (4,2) and h ((15)) 5, a function g2 : a --> b such that g20 f h and 92--> gi, where f and h are given in question 4.