difference between one one n ONTO FUNCTIONS
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a function for which every element of the range of the function correspondent to exactly one element of the domain.one to one is written 1-1.y=f(X) is a function if it passes the vertically line test it is one to one fun.
from mathematics a function from f from a set X to set a Y is a onto fun if every element y in Y has a corresponding element x in X. such that y=f(x)
from mathematics a function from f from a set X to set a Y is a onto fun if every element y in Y has a corresponding element x in X. such that y=f(x)
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