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Show that the function f: N→N given by f(1) = f(2) = 1 and f(x) = x – 1, for every x ≥ 3, is onto but not one-one. |
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Answer» Show that the function f: N→N given by f(1) = f(2) = 1 and f(x) = x – 1, for every x ≥ 3, is onto but not one-one. |
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