👉 In mathematics, permutation is a way of arranging objects in an ordered sequence. It can be defined as the act of rearranging elements from a set into a sequence or arrangement. For example: 1. The permutation of 3 students out of 5 students (students = {A, B, C, D}) can be written as: A, B, C, D 2. The permutation of 4 letters out of the alphabet (letters = {a, b, c, d
