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Mathematics, 24.03.2020 20:54 taquavienw
Let Z be the set of integers, Z* be the set of nonzero integers, and Q be the set of rational numbers.
Define: g: Z×Z* → Q by g(x, y) = x/y for any x∈Z and y∈Z*
(a) Is g one-to-one? Explain why.
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