IMO 1972

For students of class 6-8 (age 12 to 14)
User avatar
Arifa
Posts: 5
Joined: Wed Nov 22, 2017 8:09 pm

IMO 1972

Unread post by Arifa » Tue Dec 04, 2018 11:12 am

Prove that, (2n)!(2m)!/n!m!(n+m)! is an integer. Where m, n is positive integer[*]

User avatar
samiul_samin
Posts: 1007
Joined: Sat Dec 09, 2017 1:32 pm

Re: IMO 1972

Unread post by samiul_samin » Thu Jan 10, 2019 12:29 am

Arifa wrote:
Tue Dec 04, 2018 11:12 am
Prove that, (2n)!(2m)!/n!m!(n+m)! is an integer. Where m, n is positive integer[*]
Full solution

Post Reply