Question

Simplifique (n-4)! /(n-2)! ​

Answer 1

Resposta:

Explicação passo-a-passo:

(n - 4)!/(n - 2)! =

(n - 4)!/(n - 2)(n - 3)(n - 4)! =

1/(n - 2)(n - 3)

Abraços!

Answer 2

Hey!

$\frac{(n-4)!}{(n-2)!}\\\\\frac{(n-4)!}{(n-2).(n-3).(n-4)!}\\\\\frac{1}{(n-2).(n-3)}\\\\\frac{1}{2n-3n-2n+6}\\\\\frac{1}{-3n+6}\\\\(-3n+6)^{-1}$