Question: Let g : A B and f : B C be functions. Justify your answer on each of the following. (a) If f g is

Let g : A B and f : B C be functions. Justify your answer on each of the following. (a) If f g is one to one, does it follow that g is one to one? (b) If f g is one to one, does it follow that f is one to one? (c) If f g is onto, does it follow that g is onto? (d) If f g is onto, does it follow that f is onto?

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