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Briefly explain why function f is not a one-to-one function

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Reference no: EM131019169

(a) Define the function f: R  → R by f(x) = x2 - 6.

Briefly explain why f is not a 1-1 (one-to-one) function.

(b) Is the function g: Z  →   Z defined by g(n) = [n/2] a one to one function?  (Be careful, [n/2] means the ceiling function.)  Explain.

(c) Briefly explain what f-1 means, and find f-1 for part (a)

Reference no: EM131019169

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