Question

Calcule os seguintes fatoriais
A) 8!
B) 5!
C) 8! . 2!
D) 10! : 5!

Answer 1

8!=8.7.6.5.4.3.2.1=40320
5!=5.4.3.2.1=120
8!.2!=8.7.6.5.4.3.2.1.2.1=80640
10!:5!=10.9.8.7.6.5!/5!=30240

Answer 2

a) 8! = 8*7*6*5*4*3*2*1 = 362880

b) 5! = 5*4*3*2*1 = 120

c) 8!*2! = 8*7*6*5*4*3*2*1*2*1 = 725760

d) 10! : 5! = (10*9*8*7*6*5*4*3*2*1) / (5*4*3*2*1) = 32659200/120 = 272160