Question

Simplifique as expressoes. Cn-1,p-1 / Cn-2,p-2​

Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo-a-passo:

$\mathsf{\dfrac{C_{n- 1,p-1}}{C_{n- 2,p-2}} = \dfrac{\dfrac{(n - 1)!}{(p - 1)!.[\:(n - 1) - (p - 1)\:]!}}{\dfrac{(n - 2)!}{(p - 2)!.[\:(n - 2) - (p - 2)\:]!}} = \dfrac{n - 1}{p- 1}}$

$\boxed{\boxed{\mathsf{\dfrac{C_{n- 1,p-1}}{C_{n- 2,p-2}} = \dfrac{n - 1}{p - 1}}}}$