Question

what is onto and one one function​

Answer 1

Step-by-step explanation:

A function f from a set X to a set Y is onto, if for every element y in the codomain Y of f, there is at least one element x in the domain X of f such that f(x) = y.

One one function or one one mapping states that each element of one set, say Set (A) is mapped with a unique element of another set, say, Set (B), where A and B are two different sets.

In terms of function, it is stated as if f(x) = f(y) implies x = y, then f is one to one.