Question

Calcule a combinação de C 5,2

Answer 1

$\mathtt{C_{n,p} = \dfrac{n!}{p!(n-p)!}}$


$\mathtt{C_{5,2} = \dfrac{5!}{2!(5-2)!}~~=~~\dfrac{120}{2!(3)!}~~=~~\dfrac{120}{2~.~6}~~=~~ \dfrac{120}{12}~~=~~10} \\ \\ \\ \boxed{\boxed{\mathtt{Resposta: 10}}}$

Answer 2

Boa noite!

Combinação Simples.

C(5,2)

C(n,p)=n!/(n-p)!p!

C(5,2)=5!/(5-2)!2!

C(5,2)=5!/3!2!

C(5,2)=5×4×3!/3!2!

C(5,2)=5×4/2×1

C(5,2)=20/2

C(5,2)=10

Att;Guilherme Lima