Question

9)Simplifique as seguintes expressões:

a)

9!4!

5!6!​

Answer 1

$9! = 9.8.7.6.5.4.3.2.1 = 72.42.20.6 = 3024.120 = 362880$

$4! = 4.3.2.1 = 12.2 = 24$

$5! = 5.4.3.2.1 = 20.6 = 120$

$6! = 6.5.4.3.2.1 = 30.12.2 = 30.24 = 720$