Answer:
6840
Step-by-step explanation:
20 ! = 20*19*18*17*.......1
17 =17*16*15*.....1
20!
-----
17!
20*19*18*17*.......1
---------------------------
17*16*15*.....1
Canceling like terms
20*19*18
------------
1
6840
Answer:
[tex]20!/17![/tex]
[tex]\frac{20!}{17!}=20\cdot \:19\cdot \:18[/tex]
[tex]20\cdot \:19\cdot \:18=6840[/tex]
[tex]OAmalOHopeO[/tex]
