Question

11) Resolva a equação (n-1)! = 1
(n+1)! -4n

Answer 1

n-1= 1 (n+1) -4n
n-1 = n+1 -4n
n-n+4n=1+1
4n = 2
n= 2/4
n= 1/2 ou 0.5