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Let f(n) be a negligible function and k a positive integer. Prove the following: (a) f(√n)...

Let f(n) be a negligible function and k a positive integer. Prove the following:

(a) f(√n) is negligible.

(b) f(n/k) is negligible.

(c) f(n^(1/k)) is negligible.

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