Question

simplifique a expressão (n+3)!/(n +1)! + (n+2)!

Answer 1

boa tarde, Eduarda!

$\frac{(n+3)!}{(n+1)!+(n+2)!}$
$\frac{(n+3)!}{(n+1)!*(1+n+2)!}$
$\frac{(n+3)!}{(n+1)!(n+3)!}$
$\frac{(n+3)*(n+2)*(n+1)!}{(n+1)!*(n+3)!} = n+2$

espero ter ajudado.
bons estudos! ;)