Question

what is an onto function​

Answer 1

Answer:

a function f: A to B is said to be onto function if all the elements of co domain are images of domain

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Answer 2

Answer:

a function from a set Xto a set Y is surjective , if for every element y in the codomain y of f , there is a list one element x in the domain x of f such that f(x)=y. It is not required that x be unique ; the function f may map one or more elements of x to the same element of y.