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Determine whether each of these functions from Z to Z is one-to one 1. f(x) = x 1 2. f(x) = x 2 + 1

Determine whether each of these functions from Z to Z is one-to one

1. f(x) = x 1

2. f(x) = x 2 + 1

3. f(x) = dx/2e

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