Chapter 13.1, Problem 7CFU

To determine

To find: The value of $P\left(6,6\right)$ .

Answer to Problem 7CFU

The value of $P\left(6,6\right)$ is $720$ .

Explanation of Solution

Consider the permutation of the n object taken $r$ at a time is,

  $P\left(n,R\right)=\frac{n!}{\left(n-r\right)!}$

Then,

  $\begin{array}{c}P\left(6,6\right)=\frac{6!}{\left(6-6\right)!}\\ =\frac{6!}{1}\\ =720\end{array}$