Search found 155 matches

by sowmitra
Mon Feb 16, 2015 6:46 pm
Forum: Combinatorics
Topic: Triangle in a 2n-Graph
Replies: 2
Views: 748

Triangle in a 2n-Graph

There are $2n$ points in space such that no $3$ points are co-linear. Suppose, they are joined by at least $n^2+1$ edges. Show that, at least $1$ triangle is formed.
by sowmitra
Fri Feb 06, 2015 8:17 pm
Forum: Secondary Level
Topic: Practice Problem Set for National (Secondary Category)
Replies: 2
Views: 1238

Re: Practice Problem Set for National (Secondary Category)

I think it would be nice if all the P-Sets were merged in one thread, and, the discussions were carried out in that thread as well... :roll: :)
by sowmitra
Sun Feb 01, 2015 6:12 pm
Forum: National Math Olympiad (BdMO)
Topic: Warm-Up Problems For BDMO-2015
Replies: 1
Views: 967

Re: Warm-Up Problems For BDMO-2015

There's a typo in no. 3... which has been corrected :geek:
by sowmitra
Sat Jan 31, 2015 9:20 pm
Forum: National Math Olympiad (BdMO)
Topic: Warm-Up Problems For BDMO-2015
Replies: 1
Views: 967

Warm-Up Problems For BDMO-2015

A joint effort of me and photon. We hope these'll help to warm-up for the National Olympiad.
Have fun solving problems... :D
by sowmitra
Tue Jan 27, 2015 7:22 pm
Forum: Higher Secondary Level
Topic: Infinity*zero= ??
Replies: 5
Views: 1581

Re: Infinity*zero= ??

I don't think Infinity is a number... it is a concept...
by sowmitra
Sun Jan 18, 2015 7:37 pm
Forum: Geometry
Topic: Some Angle-Related Problems
Replies: 0
Views: 836

Some Angle-Related Problems

For the geometry afficionados. Any suggestion will be appreciated.
Enjoy. :D
by sowmitra
Fri Jan 09, 2015 11:26 pm
Forum: Algebra
Topic: Function material
Replies: 4
Views: 4022

Re: Function material

I'll post what I have. Others please continue the thread. $[1]$ Functional Equations , by, Marko Radovanovic Note from IMO-Math funeqn_mr.pdf $[2]$ Functional Equations , by, David Arthur Article from Canadian IMO Training-Camp 2014 Functional Equations - David Arthur - 2014 winter camp.pdf
by sowmitra
Fri Jan 09, 2015 11:10 pm
Forum: Social Lounge
Topic: Last post of the year 2014
Replies: 3
Views: 2001

Re: Last post of the year 2014

I think it should be... "ফার্স্ট ডিফারেন্সিয়াল জিরো ও সেকেন্ড ডিফারেন্সিয়াল নেগেটিভ হোক" ;)
by sowmitra
Tue Dec 30, 2014 9:51 pm
Forum: Higher Secondary Level
Topic: Looking for projective geometry books
Replies: 6
Views: 2475

Re: Looking for projective geometry books

For downloading books, you can check out: Bookfi
by sowmitra
Tue Dec 30, 2014 9:48 pm
Forum: Higher Secondary Level
Topic: Looking for projective geometry books
Replies: 6
Views: 2475

Re: Looking for projective geometry books

This is the continuation of Remorov's article from $[4]$:
ProjectiveGeometryContinued.pdf
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