Question: Determine whether each of the functions f (a) = a div d and g(a) = a mod d, where d is a fixed positive integer,

Determine whether each of the functions f (a) = a div d and g(a) = a mod d, where d is a fixed positive integer, from the set of integers to the set of integers, is one-to-one, and determine whether each of these functions is onto?

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