## Precalculus (6th Edition) Blitzer

False; the correct expression is $\frac{n!}{\left( n-1 \right)!}=n$
The provided expression is $\frac{n!}{\left( n-1 \right)!}$ It can be rewritten as: $\frac{n!}{\left( n-1 \right)!}=\frac{n\left( n-1 \right)!}{\left( n-1 \right)!}=n$