Question

simplifique a expressão, a seguir:



n! - ( n-1)!/ n!

Answer 1

$\frac{n!-(n-1)!}{n!} = \frac{n(n-1)!-(n-1)!}{n(n-1)!} = \frac{(n-1)!(n-1)}{n(n-1)!}= \frac{n-1}{n}$