Question

Obtendo,, o valo arranjo arranjo 4 Vírgula 2 mas arranjo 7,3

Answer 1

Obtendo,, o valo arranjo arranjo 4 Vírgula 2 mas arranjo 7,3

A4,2 = 4 • 3 = 12
A7,3 = 7 • 6 • 5 = 210

210 + 12 = 222

Resposta : 222

Answer 2

Arranjo Simples  :  $\mathtt{A~_n_,_p=\dfrac{n!}{(n-p)!}}$


$\mathtt{A~_4_,_2=\dfrac{4!}{(4-2)!}~~=~~ \dfrac{24}{2!}~~=~~\dfrac{24}{2}~~=~~12} \\ \\ \\ \mathtt{A~_n_,_p=\dfrac{7!}{(7-3)!}~~=~~\dfrac{5.040}{4!}~~=~~\dfrac{5.040}{24}~~=~~210} \\ \\ \\ \mathtt{12 + 210 = 222 } \\ \\ \\ \boxed{\boxed{\mathtt{Resposta: 222}}}$