Question

Simplifique
(n+1)!
a) -------------- =
n!

n!
b) --------------- =
(n-1)!

Answer 1

Olá, Wesley.

$a) \frac{(n+1)!}{n!}= \frac{(n+1)*n!}{n!} = (n+1) \\ \\ b) \frac{n!}{(n-1)!} = \frac{n*(n-1)!}{(n-1)!} =n$

Espero ter ajudado.