Question: 3. For each function below, determine whether or not it is (i) injective (one-to-one),(ii) surjective (onto). Fully justify your answers. (a) f : R R

3. For each function below, determine whether or not it is (i) injective (one-to-one),(ii) surjective (onto). Fully justify your answers. (a) f : R R R defined by f(x, y) = 2x y2(b) g : R+ R R R defined by g(x, y) = (3x + 2y, x2)

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