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 No new posts [ Popular ] Attachment Vasc's new book  
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Valentin Vornicu   77    26888    Mon Jun 08, 2009 6:43 am 
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 No new posts [ Popular ] Don't help contest cheaters, please  
this concerns all of Olympiad Section, not just Inequalities!
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darij grinberg   39    11557    Sat Feb 28, 2009 2:50 am 
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 No new posts [ Popular ] Important Problem Searching and Naming!  
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harazi   30    17503    Fri May 18, 2007 3:26 pm 
Valentin Vornicu View latest post
 Topics 
 No new posts sqrtAI + sqrtBI + sqrtCI <= sqrt R  
geomtry and trigonometry
ridgers   3    122    Today, at 12:35 am 
crazyfehmy View latest post
 No new posts China team training(2009)  
shapiro like....
Jianxing113725   0    57    Yesterday, at 9:21 pm 
Jianxing113725 View latest post
 No new posts 4 variables,find min C  
KazNMO-2008,probable author is N.Sedrakyan
birzhan   0    68    Yesterday, at 6:24 am 
birzhan View latest post
 No new posts Attachment help me!   iptgut   5    182    Thu Jul 02, 2009 11:12 pm 
SUPERMAN2 View latest post
 No new posts Algebra   L_Euler   1    102    Thu Jul 02, 2009 8:41 pm 
caubetoanhoc94 View latest post
 No new posts Trigonometric Inequality   Moonmathpi496   4    154    Thu Jul 02, 2009 6:32 am 
Sergic Primazon View latest post
 No new posts Solve maximum problem without using calculus  
Find max(cos(xy)+cos(xz)+cos(yz)), using inequalities
Krabathor   8    292    Wed Jul 01, 2009 10:43 pm 
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 No new posts Question Trigonometry   hii.tech   5    196    Wed Jul 01, 2009 7:01 am 
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 No new posts Ineq.   Mîndrilă Claudiu   3    168    Wed Jul 01, 2009 6:28 am 
Bugi View latest post
 No new posts a hard inequality   duythuc_lqd   1    232    Wed Jul 01, 2009 3:53 am 
snowingforest View latest post
 No new posts 3 variables ineq  
Please help me
tobeno_1   1    92    Wed Jul 01, 2009 2:32 am 
arqady View latest post
 No new posts Blah  
pretty hard...
Smilley   0    78    Wed Jul 01, 2009 2:11 am 
Smilley View latest post
 No new posts one inequality uses pqr.   tuantam1lan   0    67    Tue Jun 30, 2009 11:11 pm 
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 No new posts [ Popular ] Nice  
Pham Kim Hung
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hungkhtn   32    4480    Tue Jun 30, 2009 11:01 pm 
tuantam1lan View latest post
 No new posts inequality!   *210*   1    138    Tue Jun 30, 2009 11:18 am 
rachid View latest post
 No new posts May be an old problem  
but very very very nice ....
Jianxing113725   1    116    Mon Jun 29, 2009 9:59 pm 
Jianxing113725 View latest post
 No new posts Solve maximum problem  
max(cos(x) cos(y) + cos(x) cos(z) + cos(y) cos(z))
Krabathor   3    136    Mon Jun 29, 2009 12:29 pm 
fedja View latest post
 No new posts Easy problem   nguyenvuthanhha   1    106    Mon Jun 29, 2009 2:35 am 
arqady View latest post
 No new posts find the best k  
it is all right if using computer
Jianxing113725   6    236    Sun Jun 28, 2009 7:13 pm 
math10 View latest post
 No new posts Tough ineq  
Hard....
Smilley   1    98    Sun Jun 28, 2009 3:52 am 
arqady View latest post
 No new posts elegant solution needed   maus   6    242    Sun Jun 28, 2009 3:42 am 
arqady View latest post
 No new posts Find the best value of constant c   KDS   0    66    Sat Jun 27, 2009 7:52 pm 
KDS View latest post
 No new posts Croatian MEMO TST 2009  
Middle Europe Mathematical olympiad TST Day 1 First problem
Matematika   8    425    Sat Jun 27, 2009 6:58 pm 
arqady View latest post
 No new posts Nice but maybe hard   nguyenvuthanhha   6    205    Sat Jun 27, 2009 5:27 pm 
kunny View latest post
 No new posts 3 Variables with Absolute Values  
created by kunny
kunny   3    188    Sat Jun 27, 2009 3:07 pm 
peine View latest post
 No new posts last two digits  
Netherlands 1983
moldovan   1    61    Sat Jun 27, 2009 3:07 pm 
Vworldv View latest post
 No new posts inequality in integers  
Netherlands 1990
moldovan   2    82    Sat Jun 27, 2009 2:31 pm 
Vworldv View latest post
 No new posts Interesting   Pluraln   1    185    Sat Jun 27, 2009 10:07 am 
arqady View latest post
 No new posts Nice ineq  
MOSP 2005
SUPERMAN2   1    114    Sat Jun 27, 2009 3:11 am 
qwerty414 View latest post
 No new posts any solution by AM-GM?   bye   5    302    Fri Jun 26, 2009 9:33 pm 
arqady View latest post
 No new posts Nice and interesting   SUPERMAN2   0    101    Fri Jun 26, 2009 12:02 am 
SUPERMAN2 View latest post
 No new posts (a^2+b^2+c^2)^2 and a^3b + b^3c + c^3a  
INEQUALITIES THROUGH PROBLEMS
Johan Gunardi   2    157    Thu Jun 25, 2009 7:44 pm 
Johan Gunardi View latest post
 No new posts very easy inequality  
Canada 1997
moldovan   1    105    Thu Jun 25, 2009 7:16 pm 
stephencheng View latest post
 No new posts ineq and natural numbers   micf   1    76    Thu Jun 25, 2009 11:46 am 
reza1370 View latest post
 No new posts Inequality with three variables   SAPOSTO   2    174    Thu Jun 25, 2009 4:28 am 
caubetoanhoc94 View latest post
 No new posts ineq 16   math10   0    80    Thu Jun 25, 2009 1:44 am 
math10 View latest post
 No new posts Tangent inequality   BG Yoda   2    266    Thu Jun 25, 2009 1:29 am 
can_hang2007 View latest post
 No new posts Training Test   SAPOSTO   2    146    Wed Jun 24, 2009 4:09 pm 
silouan View latest post
 No new posts help me------two triangle inequalities   wxd686   8    449    Wed Jun 24, 2009 6:39 am 
wxd686 View latest post
 No new posts arrangement given   bye   0    68    Wed Jun 24, 2009 4:14 am 
bye View latest post
 No new posts A very nice problem  
cosA+cosB+cosC
SUPERMAN2   10    641    Tue Jun 23, 2009 8:47 am 
Sergic Primazon View latest post
 No new posts Challenge Symmetric Mean Inequality   anorithdialga   1    86    Tue Jun 23, 2009 6:33 am 
nsato View latest post
 No new posts An inequality   April   1    100    Mon Jun 22, 2009 8:22 pm 
arqady View latest post
 No new posts 1/a+1/b+1/c≤3   SUPERMAN2   2    201    Mon Jun 22, 2009 8:17 pm 
arqady View latest post
 No new posts inequalities   cnyd   1    125    Mon Jun 22, 2009 7:22 am 
stephencheng View latest post
 No new posts help   bye   5    131    Mon Jun 22, 2009 5:16 am 
bye View latest post
 No new posts Iran 98 - An old problem :|   long14893   3    306    Sun Jun 21, 2009 6:56 am 
long14893 View latest post
 No new posts find the max   ityaa   0    84    Sun Jun 21, 2009 6:30 am 
ityaa View latest post
 No new posts Inequality (homogenous)  
BMO 2005; Proposed by Serbia & Montenegro
Potla   2    170    Sun Jun 21, 2009 4:36 am 
caubetoanhoc94 View latest post
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