Question: 4. Classify each function as injective, surjective, bijective, or none of these. answers. a. f : Z -4 Z defined by f (n) =

4. Classify each function as injective, surjective, bijective, or none of these.

4. Classify each function as injective, surjective, bijective, or none of these. answers. a. f : Z -4 Z defined by f (n) = n3 f is injective / not injective because f is surjective / not surjective because f is bijective / not bijective b. f R+ defined by f = f is injective / not injective because f is surjective / not surjective because f is bijective / not bijective Mark and justify your

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