Question

O resultado de C₁₂,₆ + C₈,₂ é: e urgente me ajudem por favor!!!

Answer 1

Resposta:

952.

Explicação:

$C_{n,p} = \frac{n!}{(n-p)!.p!}\\ C_{12,6} = \frac{12!}{(12-6)!.6!}\\C_{12,6} = \frac{12.11.10.9.8.7.6!}{6!.6!}\\C_{12,6} = \frac{12.11.10.9.8.7}{6.5.4.3.2.1}\\C_{12,6} = \frac{12.11.10.9.8.7}{6.5.4.3.2.1}\\C_{12,6} = \frac{665280}{720}\\C_{12,6} = 924.\\C_{8,2} = \frac{8!}{(8-2)!.2!}\\C_{8,2} = \frac{8!}{6!.2!}C_{8,2} = \frac{8.7.6!}{6!.2.1}\\C_{8,2} = \frac{8.7}{2}\\C_{8,2} = \frac{56}{2}\\C_{8,2} = 28\\\\C_{12,6} +C_{8,2} = ?\\924 + 28 = 952\\C_{12,6} +C_{8,2} = 952.$

Att, Felipemlvr.