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g: R+ R R R defined g(x, y) = (3x+2y, x) determine whether or not it is injective, surjective? Fully justify your answers. Check

g: R+ R R R defined g(x, y) = (3x+2y, x) determine whether or not it is injective, surjective? Fully justify your answers. Check g(x) is injective or not. Check g(x) is surjective or not.

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