Question

Simplifique (n+2)! - (n+1)! / (n+1)!

Answer 1

(n+2)! - (n+1)! / (n+1)!

(n+2)! / (n+1)! - (n+1)! / (n+1)!

(n+2).(n+1)! / (n+1)! - 1

(n+2) -1

n +1