👉 A noncombination is a type of permutation in which all elements are distinct. In other words, it's a permutation where every element appears exactly once. Example: - For the permutation 1234, there are no duplicates (all elements appear exactly once), so this is a noncombination. - For the permutation 1235, we have two unique elements (1 and 2) which make up a combination of permutations.
