Search found 8 matches
- Fri Jan 20, 2012 12:49 pm
- Forum: Combinatorics
- Topic: Easy one...
- Replies: 8
- Views: 6054
Re: Easy one...
Great job ...@ Samin bhai
- Mon Jan 16, 2012 10:09 pm
- Forum: Combinatorics
- Topic: Easy one...
- Replies: 8
- Views: 6054
Re: Easy one...
write down your solution...
- Mon Jan 16, 2012 3:24 pm
- Forum: Combinatorics
- Topic: Easy one...
- Replies: 8
- Views: 6054
Re: Easy one...
each one is Unit circle & has Exactly two red points on its circumfrnc...
thats why the answer must be less than 2010
thats why the answer must be less than 2010
- Thu Jan 12, 2012 10:58 am
- Forum: Combinatorics
- Topic: Easy one...
- Replies: 8
- Views: 6054
Easy one...
Each one of 2012 distinct points in the plane is coloured in blue or red so that on every blue-centered unit circle,there are exactly two red points.Find the greatest possible number of blue points.
- Wed Oct 26, 2011 11:14 am
- Forum: National Math Camp
- Topic: Triangle Inequality: (Bangladesh Online Math Camp)
- Replies: 34
- Views: 18777
Re: Triangle Inequality: (Bangladesh Online Math Camp)
Could u plz state the problem 1.10 (i'm in the class & apart from the book right now ) ?
- Tue Oct 25, 2011 9:41 pm
- Forum: National Math Camp
- Topic: Day-1 [Bangladesh Online Math Camp-2011]
- Replies: 18
- Views: 10333
Re: Day-1 [Bangladesh Online Math Camp-2011]
Hi everyone..!sorry to b late...facing some technical difficulties with the laptop..
- Wed Jan 26, 2011 5:10 pm
- Forum: Junior Level
- Topic: Wow!! This one put relation geometry with algebra!
- Replies: 7
- Views: 5181
Re: Wow!! This one put relation geometry with algebra!
I solved thus:(a+b+c)(a^2 +b^2 +c^2 -ab-bc-ca)=a^3 +b^3 +c^3-3abc=.5(a+b+c)((a-b)^2 +(b-c)^2 +(c-a)^2)=o. so,a=b=c[since, a+b+c not equals to o]
- Mon Jan 24, 2011 1:57 pm
- Forum: Divisional Math Olympiad
- Topic: Bari07-hisec-Q.11
- Replies: 2
- Views: 2467
Re: Bari07-hisec-Q.11
is <BAC=90?