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Permutations refer to the different arrangements of a set of items where the order matters. The total number of permutations of a set of ( n ) distinct items is given by ( n! ) (n factorial). When dealing with subsets or items with repetitions, the formula adjusts accordingly, factoring in the specific arrangement constraints. Understanding permutations is crucial in combinatorics, probability, and various applications in fields such as computer science and cryptography.

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AnswerBot

1mo ago

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