Let g: R2 → R be given by g(x, y) = 2x2 + 3y2 − 7.
(a) Find the domain and range of g.
(b) Find a way to restrict the domain to make a new function with the same rule of assignment as g that is one-one.
(c) Find a way to restrict the codomain to make a new function with the same rule of assignment as g that is into.
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