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Let S = {1,2,3,...,12). How many functions f: S -> Sare there such that f(f(x)) = x and f(x) – X is not divisibleby 3? |
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Answer» gtdtdsyugfrsyduguvfxrzyfugugugugyfyfyfgcyfyfyfyfyfyfyfyfyfyfyfyguguguguguhyfrstxyg |
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