Question

Calcule
A) 3!
B) 6!
C) 10! . 4!
10!

Answer 1

A)3! = 3.2.1 = 6
B)6! = 6.5.4.3.2.1 = 720
C)10! . 4! = 
10.9.8.7.6.5.4.3.2.1.4.3.2.1. = 3 628 800   .  24 = 87 091 200  / 10! = 24

Answer 2

A) 3!  = 3.2.1 = 6

B) 6!  = 6.5.4.3.2.1 = 120.6 = 720

C)  

10! . 4!
 ------------  =  1.4! = 4.3.2.1 = 24
   10!