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A function f(·) satisfies the following two properties :(i) f (1) = 1(ii) f (a) = (a - 1) x f (a - 1)where a is any positive real number. Assume that n is a positive integer. Whlch one ofthe following statements is certainly true?(a) f (n) = (n- 1)(b) f(n) = (n- 1)!(c) f(n) = n*(n-1)(d) f (n) cannot be computed from the information given
answer is b as it satisfies both the properties i) and ii) approve the ans thnx.......................................................................................................................................................................
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