Question

fatorial


simplifique
7! 6!
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4! 8!

Answer 1

$\frac{7!6!}{4!8!}=\frac{7!\times6\times5\times4!}{4!\times8\times7!}=\frac{6\times5}{8}=\frac{15}{4}$

Answer 2

$\frac{7!6!}{4!8!} = \frac{7!.6.5.4!}{4!.8.7!} = \frac{6.5}{8}= \frac{30}{8} = \frac{15}{4}$