Define G: R × R R × R as follows:G(x, y) = (2y, x) for all

Chapter 7, Problem 28E

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Define G: R × R ? R × R as follows:G(x, y) = (2y, ?x) for all (x, y)? R × R.a. Is G one-to-one? Prove or give a counterexample.________________b. Is G onto? Prove or give a counterexample.

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