Question

simplifique:n!4!/(n-1)!2!

Answer 1

ANÁLISE COMBINATÓRIA

Fatorial


$\frac{n!4!}{(n-1)!2!}= \frac{n!*(n-1)!4!}{(n-1)!2!}= \frac{n!*4*3*2!}{2!} = 12*n=12n$



Resposta: 12n