Answer:
Permutaion
Explanation:
Permutations deals with ordering or reordering objects that a unique. it deals with arranging the elements of a set of items into and agreed order or rearranging such items in an agreed order, this is called permuting.
Permutation is a tool embraced by mathematicians and all variants of mathematics, as well as many fields of science. it helps in the tasks that deals with sequence, analysis and sorting. the number of permutation of a set on n unique terms is n factorial (n!)
