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Let f: Z R be a function such that f(m+n) f(m) f(n)=1 for all m, n in Z . Then

Options

  1. Af(n+1) f(n) f(n-1) for all n
  2. Bf(n+1) f(n) f(n-1) for all n
  3. C|f(n)| 1 for all n
  4. Df(n) 0 for all n

Correct answer

C. |f(n)| 1 for all n

Step-by-step solution

No solution available.

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