Question

simplifique as expressões:
a-3! 5! +4!/ 4! 6! ??? me ajudem
b- 50!/ 48+49 ???
c-(n-3)! / (n - 2)! ????


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Answer 1

Simplicação!

A)

$\frac{3!5!+4!}{4!6!}=\frac{3!5!}{6!}=\frac{3!5!}{6.5!}=\boxed{\frac{3!}{6}}$

B)

$\frac{50!}{48+49}=\boxed{\frac{50!}{97}}$

C)

$\frac{(n-3)!}{(n-2)!}=\frac{(n-3)!}{(n-2).(n-3)!} =\boxed{n-2}$