Question

Simplificar:

d) 6!. 8! / 5!. 9!

e) 7! . 10! / 8! . 9!

Answer 1

Simplificação de fatoriais:

d) $\frac{6!.8!}{5!.9!} = \frac{6.5!.8!}{5!.9.8!} = \frac{6}{9}= \frac{2}{3}$

e) $\frac{7!.10!}{8!.9!} = \frac{7!.10.9!}{8.7!.9!} = \frac{10}{8}= \frac{5}{4}$