Question

Calcule : [n!+(n+1)!] / (n+1)! =6/5

Answer 1

as caracteristicas das piores luas

Answer 2

$\frac{n!+(n+1)!}{(n+1)!} = \frac{6}{5} \\ \frac{n!+(n+1).n!}{(n+1).n!} = \frac{6}{5} \\ \frac{n!(1+n+1)}{(n+1)n!} = \frac{6}{5} \\ \frac{n+2}{n+1} = \frac{6}{5} \\ 6n+6=5n+10 \\ n=4$