Question

Efetue o fatorial

a) 17280
b) 64050
c) 10000
d) 27720

Me ajudem por favor​

Answer 1

d) 27 720

$\frac{12!}{(9 - 3)! \times 4!} \\ \frac{12!}{6! \times 4!} = \frac{12 \times 11 \times 10 \times 9 \times 8 \times 7 \times 6!}{6! \times 24 } = \\ \frac{665280}{24} = 27720$