Question

simplefique as expressões. 9!8!/6!10!

Answer 1

9!*(8*7*6!)/6!*(10*9!)=
Cancela o 9! e o 6!, fica=
8*7/10=
56/10=
5,6

Answer 2

9!8!/(6!10!)= 9!.8.7.6!/(6!.10.9!) = 8.7/10 = 56/10 (:2)/(:2) = 28/5