n=7 and r=3
r=0 or 1 or 2
r=3
N(n-1)(n-2)=7*6*5
Then n=7
When r>3
(n),(r) (2) :
:
(n),(r) (2) :
:
(n),(r) (2) :
:
: 1 (0 1 )
Powered by vBulletin® Version 4.2.3
Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.
Translate By
Almuhajir
Developed By Marco Mamdouh
Style
Zavord