## Intermediate Algebra for College Students (7th Edition)

RECALL: (1) $n!$, read as $n$ factorial, is defined by the formula: $n!=n(n-1)(n-2)(n-3)...(3)(2)(1)$ where $n$ is a non-negative integer. (2) $0! = 1$ Thus, $5!$ is 5 factorial. This is equal to the product of all positive integers 5, 4, 3, 2, and 1. Therefore the missing expressions in the given statements are: factorial; 5; 1; 1