Question

Como calcular (n+1)!=(n-1)! E (n+1)!/n! =4! Me ajudem

Answer 1

(n+1)n (n-1)!/(n-1)! cancelar o fatorial
= (n+1) n
=n²+ n


(n+1)n!/n!=4!
(n+1)=24
n=24-1
n=23