Question

what is permutation​

Answer 1

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In mathematics, a permutation of a set is, loosely speaking, an arrangement of its members into a sequence or linear order, or if the set is already ordered, a rearrangement of its elements. The word "permutation" also refers to the act or process of changing the linear order of an ordered set.

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Answer 2

Answers:

Permutation is the collection of arrangements of an object which is a part of probability

FORMULA:

nPr= n! /(n-1)!