Question

Simplifique e calcule o valor de:
$\frac{5!.15!}{13!.7!}$

Answer 1

15! = 15.14.13!
7! = 7.6.5!
..........
5!.15!/13!.7! = 5!.15.14.13! / 13!.7.6.5! = 15.14/7.6 = 210/42 = 5