Community

Want to learn how to tackle those tough MATHCOUNTS and AMC counting and probability problems? Check out Art of Problem Solving's Introduction to Counting & Probability by David Patrick.
Login Register Memberlist Search AoPS Blogs Contests Galleries Forum Index
The time now is Sun Nov 22, 2009 6:39 am
All times are UTC - 8
View posts since last visit
View unanswered posts
Moderators: High School Olympiad Moderators, Arne, blahblahblah, Cezar Lupu, darij grinberg, harazi, Megus, N.T.TUAN, orl, pbornsztein, pvthuan
Post new topic
8206 Topics • Page 1 of 165 • 1, 2, 3, ..., 163, 164, 165 Next
 Topics   Author   Replies   Views   Last Post 
 No new posts Explanation for 9a²b²c² <( a²b+b²c+c²a)(ab²+bc²+ca²)   Bob75   1    28    Today, at 6:33 am 
kuing View latest post
 No new posts ab+bc+ca=3   Pain rinnegan   1    57    Today, at 5:39 am 
Tourish View latest post
 No new posts filo-23  
Inequality - a, b, c
filomen   2    40    Today, at 5:23 am 
kuing View latest post
 No new posts filo-21  
Inequality - a, b, c
filomen   2    55    Today, at 4:25 am 
kuing View latest post
 No new posts 3 Variables with Absolute Value  
created by kunny
kunny   6    152    Today, at 3:39 am 
kunny View latest post
 No new posts filo-22  
Inequality - a, b, c
filomen   1    57    Today, at 3:10 am 
kuing View latest post
 No new posts filo-24  
Inequality - a, b, c
filomen   1    24    Today, at 3:03 am 
kuing View latest post
 No new posts filo-25  
Inequality - a, b, c
filomen   1    23    Today, at 2:53 am 
kuing View latest post
 No new posts Italian WinterCamp test07 problem3   mattilgale   14    4023    Today, at 1:20 am 
mestav View latest post
 No new posts Turkey NMO 2007 3.   mehmetcantu   5    528    Today, at 12:54 am 
mestav View latest post
 No new posts Attachment very very Hard   nguyenvuthanhha   14    762    Yesterday, at 6:28 pm 
Materazzi View latest post
 No new posts filo-20  
Inequality - a, b, c
filomen   0    35    Yesterday, at 2:35 pm 
filomen View latest post
 No new posts Probably weak  
me , inspired from a can hang idea
Pain rinnegan   1    71    Yesterday, at 1:02 pm 
FelixD View latest post
 No new posts On some generalizations of Nesbitt's inequality  
(Inequality MB-10 is a new one)
marin.bancos   1    93    Yesterday, at 9:23 am 
Martin N. View latest post
 No new posts A result more general than harazi's inequality   Ji Chen   1    216    Yesterday, at 7:54 am 
Rzeszut View latest post
 No new posts my ineq  
nice
tang zy   9    240    Yesterday, at 3:53 am 
tang zy View latest post
 No new posts 3 Variables and 4 constants  
created by kunny
kunny   0    79    Fri Nov 20, 2009 8:57 pm 
kunny View latest post
 No new posts 1/(a^2+bc) is in between   dduclam   13    558    Fri Nov 20, 2009 8:52 pm 
dduclam View latest post
 No new posts trigonometric inequality  
nice
hxy09   1    81    Fri Nov 20, 2009 8:40 pm 
kuing View latest post
 No new posts lipako+20  
A.I. 3 variables
lipako   1    70    Fri Nov 20, 2009 7:46 pm 
caubetoanhoc94 View latest post
 No new posts Another x,y,z inequality  
(Have you ever seen this inequality before? - Inequality MB-9)
marin.bancos   4    121    Fri Nov 20, 2009 7:41 pm 
caubetoanhoc94 View latest post
 No new posts a strange inequality  
very hard!
hxy09   0    73    Fri Nov 20, 2009 7:03 pm 
hxy09 View latest post
 No new posts lipako+21  
A.I. 3 variables
lipako   1    57    Fri Nov 20, 2009 2:25 pm 
bakerbakura View latest post
 No new posts lipako+18  
A.I. 3 variables
lipako   1    46    Fri Nov 20, 2009 1:17 pm 
bakerbakura View latest post
 No new posts Attachment ab + bc + ca = 3  
Indonesia TST 2009 Second Stage Test 4 P4
Raja Oktovin   1    214    Fri Nov 20, 2009 1:03 pm 
Inequalities Master View latest post
 No new posts filo-16  
Inequality - a, b, c
filomen   1    140    Fri Nov 20, 2009 12:37 pm 
bakerbakura View latest post
 No new posts lipako+19  
A.I. 3 variables
lipako   1    43    Fri Nov 20, 2009 11:49 am 
Martin N. View latest post
 No new posts lipako+22  
A.I. 3 variables
lipako   0    47    Fri Nov 20, 2009 11:27 am 
lipako View latest post
 No new posts nice ineq "  
Abel expander
Victory.US   1    83    Fri Nov 20, 2009 9:55 am 
Dr Sonnhard Graubner View latest post
 No new posts Inequality (related to V.Q.B. Can's idea)  
(Dedicated to can_hang2007: Inequality MB-8)
marin.bancos   3    173    Fri Nov 20, 2009 1:50 am 
marin.bancos View latest post
 No new posts minimum value   yuyang   1    94    Fri Nov 20, 2009 12:41 am 
hedeng123 View latest post
 No new posts an easy one  
Mongolian Mathematical Olympiad 2006
yuyang   0    79    Thu Nov 19, 2009 9:30 pm 
yuyang View latest post
 No new posts Inequality with roots   Max D.R.   1    120    Thu Nov 19, 2009 4:43 pm 
Max D.R. View latest post
 No new posts a,b,c,x,y,z in inequality  
Indonesia IMO 2010 TST, Stage 1, Test 1, Problem 1
Raja Oktovin   5    320    Thu Nov 19, 2009 11:09 am 
marin.bancos View latest post
 No new posts x,y,z >=0   moldovan   3    126    Thu Nov 19, 2009 10:11 am 
marin.bancos View latest post
 No new posts Find Best Constant  
complex analysis
Chang Woo-JIn   2    162    Thu Nov 19, 2009 2:05 am 
Chang Woo-JIn View latest post
 No new posts \sum \frac{a^2}{b^3+c^3} \ge   shoki   13    242    Wed Nov 18, 2009 11:25 am 
dduclam View latest post
 No new posts 1/(a^2+2bc)   mai quoc thang   3    255    Wed Nov 18, 2009 4:55 am 
hedeng123 View latest post
 No new posts A simple inequality  
dedicated to manlio
can_hang2007   8    300    Wed Nov 18, 2009 4:53 am 
manlio View latest post
 No new posts Have you a short proof?  
ductrung
manlio   4    260    Wed Nov 18, 2009 4:49 am 
manlio View latest post
 No new posts a^2+b^2+c^2+d^2=1, \sum \frac{1}{1-a} \ge 8   shoki   9    256    Wed Nov 18, 2009 4:28 am 
shoki View latest post
 No new posts \sum \frac{x}{x^2+1} \le 3\sqrt{3}/4,\sum x^2=1   shoki   3    202    Wed Nov 18, 2009 4:22 am 
shoki View latest post
 No new posts Nice symmetrical ineqality of n variables (2)   fjwxcsl   1    104    Tue Nov 17, 2009 6:12 pm 
rachid View latest post
 No new posts Inequality  
Baltic way 2009
uNc   1    199    Tue Nov 17, 2009 1:27 pm 
bakerbakura View latest post
 No new posts Inequality of 3 numbers  
[lemma for a Maths&Youth problem - deadline is over now (mod edit)]
nmtvn   7    1031    Tue Nov 17, 2009 9:47 am 
darij grinberg View latest post
 No new posts A sudden inspiration   can_hang2007   1    182    Tue Nov 17, 2009 4:57 am 
manlio View latest post
 No new posts In a triangle  
nice one
Tourish   2    130    Tue Nov 17, 2009 2:14 am 
Tourish View latest post
 No new posts Minimum value with xyz=p^3  
created by kunny
kunny   13    346    Mon Nov 16, 2009 6:04 pm 
kunny View latest post
 No new posts Interesting....  
V. Popa
soruz   5    441    Mon Nov 16, 2009 3:10 pm 
can_hang2007 View latest post
 No new posts a sharper version   ductrung   7    598    Mon Nov 16, 2009 2:41 pm 
can_hang2007 View latest post
  Display topics from previous:   Sort by:     
8206 Topics • Page 1 of 165 • 1, 2, 3, ..., 163, 164, 165 Next
Post new topic
Jump to:  
Who is Online
Who is Online Users browsing this forum: 1 Registered, 0 Hidden and 3 Guests
Registered Users: Materazzi
Legend: [ Administrator ][ Moderator ][ User ][ Bot ]
Log in
Username:     Password:      Log me on automatically each visit    
New posts New posts    Announcement Announcement
No new posts No new posts    Sticky Sticky
Popular Popular    Calendar Event
Locked Locked    Moved Moved
You have posted in this topic You have posted in this topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum



© Copyright 2008 AoPS Incorporated. All Rights Reserved. • FoundationPrivacyContact Us