Question

What is ${}^n{P}_r$the formula?

Answer 1

Determine the${}^n{P}_r$formula:

The permutation is a mathematical technique used to calculate the number of alternative arrangements in a collection where the order of the configurations is important. It concentrates on the order in which items are organized.

$P$ stands for permutation in${}^n{P}_r$:

The formula calculates the number of ways to choose and arrange $r$things from a set of $n$ objects.

${}^{\mathbf{n}}{\mathit{P}}_{\mathbf{r}}\mathbf{}\mathbf{=}\mathbf{}\mathit{P}\mathbf{(}\mathit{n}\mathbf{,}\mathbf{}\mathit{r}\mathbf{)}\mathbf{}\mathbf{=}\frac{\mathbf{n}\mathbf{!}}{\mathbf{(}\mathbf{n}\mathbf{-}\mathbf{r}\mathbf{)}\mathbf{!}}$

Here, $n$ represents the total number of items and $r$represents the number of things that must be chosen and arranged.