Question

Simplifique a) 8!/9! B) 6!/5!2! C)2.4!/4!4!

Answer 1

$a)\frac{8!}{9!}=\frac{8!}{9.8!}=\boxed{\frac{1}{9}}$

 

$b)\frac{6!}{5!2!}=\frac{6.5!}{5!2!}=\frac{6}{2}=\boxed{3}$

 

$c)\frac{2.4!}{4!4!}=\frac{2}{4!}=\frac{2}{24}=\boxed{\frac{1}{12}}$

Answer 2

É só efetuar os fatoriais

 

a) 8!/9! = 8!/9.8! = 1/9

 

b) 6!/5!2! = 6.5!/5!.2! = 6/2! = 6/2.1 = 3

 

c) 2.4!/4!4! = 2/4! = 2/4.3.2.1 = 2/12 = 1/6