Clasa a IX-a

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Regulament

Last post by Filip Chindea « Wed Mar 26, 2008 11:21 pm

by Filip Chindea » Wed Mar 26, 2008 11:21 pm

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890 Views

Last post by Filip Chindea
Wed Mar 26, 2008 11:21 pm

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Inegalitate cu a,b,c,k>0 (OWN)

Last post by Marius Mainea « Wed Dec 02, 2009 10:51 pm
Replies: 1
by Claudiu Mindrila » Wed Dec 02, 2009 7:53 pm

1 Replies

179 Views

Last post by Marius Mainea
Wed Dec 02, 2009 10:51 pm
Puncte coliniare

Last post by enescu « Mon Nov 30, 2009 1:12 am
Replies: 3
by Marius Mainea » Thu Nov 19, 2009 10:30 pm

3 Replies

596 Views

Last post by enescu
Mon Nov 30, 2009 1:12 am
Coordonatele varfului unui triunghi

Last post by Marius Mainea « Sun Nov 29, 2009 8:32 pm
Replies: 1
by Kramer » Sun Nov 29, 2009 3:16 pm

1 Replies

205 Views

Last post by Marius Mainea
Sun Nov 29, 2009 8:32 pm
Inegalitate intr-un triunghi.

Last post by Mateescu Constantin « Sat Nov 28, 2009 4:17 pm
Replies: 1
by Virgil Nicula » Fri Nov 27, 2009 10:28 am

1 Replies

341 Views

Last post by Mateescu Constantin
Sat Nov 28, 2009 4:17 pm
O ecuatie cu parti fractionare si o inegalitate

Last post by enescu « Wed Nov 25, 2009 9:32 pm
Replies: 3
by Kramer » Tue Nov 24, 2009 9:25 pm

3 Replies

356 Views

Last post by enescu
Wed Nov 25, 2009 9:32 pm
Conditie ca un patrulater sa fie paralelogram

Last post by Marius Mainea « Thu Nov 19, 2009 10:19 pm
Replies: 1
by Claudiu Mindrila » Thu Nov 19, 2009 8:21 pm

1 Replies

180 Views

Last post by Marius Mainea
Thu Nov 19, 2009 10:19 pm
Drepte perpendiculare in triunghiul isoscel.

Last post by Claudiu Mindrila « Sat Oct 03, 2009 8:32 pm
Replies: 2
by Claudiu Mindrila » Sat Oct 03, 2009 6:20 pm

2 Replies

246 Views

Last post by Claudiu Mindrila
Sat Oct 03, 2009 8:32 pm
Inegalitate algebrica (sau geometrica)

Last post by Marius Mainea « Thu Oct 01, 2009 9:43 pm

by Marius Mainea » Thu Oct 01, 2009 9:43 pm

0 Replies

200 Views

Last post by Marius Mainea
Thu Oct 01, 2009 9:43 pm
Inegalitate de la concursul GM 2009

Last post by Laurentiu Tucaa « Wed Sep 30, 2009 7:35 pm

by Laurentiu Tucaa » Wed Sep 30, 2009 7:35 pm

0 Replies

241 Views

Last post by Laurentiu Tucaa
Wed Sep 30, 2009 7:35 pm
Inegalitate din gazeta matematica 2

Last post by opincariumihai « Wed Sep 30, 2009 7:15 pm
Replies: 2
by opincariumihai » Wed Sep 30, 2009 11:12 am

2 Replies

304 Views

Last post by opincariumihai
Wed Sep 30, 2009 7:15 pm
Inegalitate in triunghi din gazeta matematica

Last post by Cezar Lupu « Mon Sep 28, 2009 8:37 am
Replies: 2
by opincariumihai » Sun Sep 27, 2009 1:35 pm

2 Replies

372 Views

Last post by Cezar Lupu
Mon Sep 28, 2009 8:37 am
Relatie remarcabila în triunghi

Last post by Virgil Nicula « Fri Sep 25, 2009 11:13 pm
Replies: 1
by Mateescu Constantin » Fri Sep 25, 2009 10:31 pm

1 Replies

228 Views

Last post by Virgil Nicula
Fri Sep 25, 2009 11:13 pm
Inegalitate intr-un triunghi ascutitunghic.

Last post by opincariumihai « Fri Sep 25, 2009 1:41 pm
Replies: 1
by Virgil Nicula » Mon Sep 21, 2009 5:41 pm

1 Replies

269 Views

Last post by opincariumihai
Fri Sep 25, 2009 1:41 pm
Inegalitate geometrica 5

Last post by Claudiu Mindrila « Wed Sep 23, 2009 2:52 pm
Replies: 2
by Marius Mainea » Mon Aug 17, 2009 11:04 am

2 Replies

369 Views

Last post by Claudiu Mindrila
Wed Sep 23, 2009 2:52 pm
O inegalitate in doua variabile pozitive.

Last post by Marius Mainea « Sun Sep 20, 2009 7:12 pm
Replies: 3
by Virgil Nicula » Wed Nov 19, 2008 10:00 am

3 Replies

491 Views

Last post by Marius Mainea
Sun Sep 20, 2009 7:12 pm
Functie care are un punct fix

Last post by Marius Mainea « Sat Sep 19, 2009 6:40 pm
Replies: 1
by mihai miculita » Sat Sep 19, 2009 3:45 pm

1 Replies

260 Views

Last post by Marius Mainea
Sat Sep 19, 2009 6:40 pm
Generalizarea problemei anterioare

Last post by Laurentiu Tucaa « Sat Sep 19, 2009 5:46 pm

by Laurentiu Tucaa » Sat Sep 19, 2009 5:46 pm

0 Replies

198 Views

Last post by Laurentiu Tucaa
Sat Sep 19, 2009 5:46 pm
O inegalitate remarcabila intr-un triunghi ascutitunghic.

Last post by Virgil Nicula « Fri Sep 18, 2009 3:52 pm
Replies: 2
by Virgil Nicula » Thu Sep 17, 2009 7:31 pm

2 Replies

554 Views

Last post by Virgil Nicula
Fri Sep 18, 2009 3:52 pm
Unghiuri congruente.

Last post by Marius Mainea « Wed Sep 16, 2009 6:12 pm
Replies: 1
by Virgil Nicula » Wed Sep 16, 2009 5:44 pm

1 Replies

203 Views

Last post by Marius Mainea
Wed Sep 16, 2009 6:12 pm
Inegalitate conditionata cu produsul 1(OWN)

Last post by Marius Mainea « Tue Sep 15, 2009 9:09 pm
Replies: 2
by Claudiu Mindrila » Tue Sep 15, 2009 5:54 pm

2 Replies

311 Views

Last post by Marius Mainea
Tue Sep 15, 2009 9:09 pm
Inegalitate conditionata cu produs

Last post by Marius Mainea « Mon Sep 14, 2009 8:30 pm
Replies: 1
by alex2008 » Mon Sep 14, 2009 3:55 pm

1 Replies

236 Views

Last post by Marius Mainea
Mon Sep 14, 2009 8:30 pm
O relatie metrica simpla intr-un triunghi.

Last post by Marius Mainea « Sun Sep 13, 2009 9:30 am
Replies: 1
by Virgil Nicula » Sun Sep 13, 2009 4:38 am

1 Replies

230 Views

Last post by Marius Mainea
Sun Sep 13, 2009 9:30 am
O veche problema de geometrie a triunghiului.

Last post by mihai miculita « Fri Aug 28, 2009 9:29 am
Replies: 4
by Virgil Nicula » Sun Apr 05, 2009 6:30 am

4 Replies

721 Views

Last post by mihai miculita
Fri Aug 28, 2009 9:29 am
Identitate cu parte întreaga; (3)

Last post by Francisc « Wed Aug 26, 2009 12:11 am
Replies: 1
by Mateescu Constantin » Tue Aug 25, 2009 10:50 pm

1 Replies

254 Views

Last post by Francisc
Wed Aug 26, 2009 12:11 am
O caractericare remarcabila a unui triunghi neobtuzunghic.

Last post by Mateescu Constantin « Sun Aug 23, 2009 10:27 pm
Replies: 1
by Virgil Nicula » Sun Aug 23, 2009 8:27 pm

1 Replies

322 Views

Last post by Mateescu Constantin
Sun Aug 23, 2009 10:27 pm
Raportul a doua segmente

Last post by Marius Mainea « Sat Aug 22, 2009 12:39 am
Replies: 1
by Mateescu Constantin » Fri Aug 21, 2009 1:37 pm

1 Replies

230 Views

Last post by Marius Mainea
Sat Aug 22, 2009 12:39 am
Coliniaritate in hexagon

Last post by mihai miculita « Thu Aug 20, 2009 10:11 am
Replies: 2
by Claudiu Mindrila » Tue Aug 11, 2009 9:51 am

2 Replies

355 Views

Last post by mihai miculita
Thu Aug 20, 2009 10:11 am
2^333

Last post by Mateescu Constantin « Thu Aug 20, 2009 12:38 am

by Mateescu Constantin » Thu Aug 20, 2009 12:38 am

0 Replies

180 Views

Last post by Mateescu Constantin
Thu Aug 20, 2009 12:38 am
Inegalitate geometrica 6

Last post by Mateescu Constantin « Tue Aug 18, 2009 1:29 pm
Replies: 1
by Marius Mainea » Mon Aug 17, 2009 7:29 pm

1 Replies

268 Views

Last post by Mateescu Constantin
Tue Aug 18, 2009 1:29 pm
Doua inegalitati interesante intr-un triunghi (own ?!).

Last post by opincariumihai « Mon Aug 10, 2009 11:18 am
Replies: 4
by Virgil Nicula » Sun Aug 09, 2009 6:55 pm

4 Replies

402 Views

Last post by opincariumihai
Mon Aug 10, 2009 11:18 am
Inegalitate cu c.m.m.d.c

Last post by Mateescu Constantin « Sun Aug 09, 2009 11:15 pm

by Mateescu Constantin » Sun Aug 09, 2009 11:15 pm

0 Replies

179 Views

Last post by Mateescu Constantin
Sun Aug 09, 2009 11:15 pm
Inegalitate intr-un triunghi.

Last post by Virgil Nicula « Fri Aug 07, 2009 5:21 am
Replies: 2
by Virgil Nicula » Tue Aug 04, 2009 9:14 pm

2 Replies

382 Views

Last post by Virgil Nicula
Fri Aug 07, 2009 5:21 am
ab+bc+ca=1

Last post by Marius Mainea « Thu Aug 06, 2009 10:27 pm
Replies: 1
by Mateescu Constantin » Thu Aug 06, 2009 10:22 pm

1 Replies

267 Views

Last post by Marius Mainea
Thu Aug 06, 2009 10:27 pm
Suma de vectori

Last post by Marius Mainea « Thu Aug 06, 2009 10:05 pm
Replies: 1
by Claudiu Mindrila » Sun Jul 12, 2009 7:53 pm

1 Replies

244 Views

Last post by Marius Mainea
Thu Aug 06, 2009 10:05 pm
Ecuatie functionala simpla

Last post by Mateescu Constantin « Thu Aug 06, 2009 7:57 pm
Replies: 1
by opincariumihai » Thu Aug 06, 2009 7:47 pm

1 Replies

221 Views

Last post by Mateescu Constantin
Thu Aug 06, 2009 7:57 pm
Conditionata cu produs

Last post by opincariumihai « Mon Aug 03, 2009 11:15 pm
Replies: 1
by Marius Mainea » Sun Aug 02, 2009 12:03 pm

1 Replies

252 Views

Last post by opincariumihai
Mon Aug 03, 2009 11:15 pm
A=60 <=> IH=IO

Last post by Mateescu Constantin « Sat Aug 01, 2009 11:53 pm
Replies: 1
by Virgil Nicula » Wed Jul 15, 2009 2:07 am

1 Replies

338 Views

Last post by Mateescu Constantin
Sat Aug 01, 2009 11:53 pm
Formula sinusului sumei, consecinta a teoremei sinusurilor

Last post by Virgil Nicula « Sat Aug 01, 2009 5:15 pm
Replies: 1
by mihai miculita » Fri Jul 10, 2009 7:17 pm

1 Replies

523 Views

Last post by Virgil Nicula
Sat Aug 01, 2009 5:15 pm
x,y,z>0, x+y+z=1

Last post by Marius Mainea « Sat Aug 01, 2009 1:45 pm
Replies: 1
by Claudiu Mindrila » Sat Aug 01, 2009 12:57 pm

1 Replies

238 Views

Last post by Marius Mainea
Sat Aug 01, 2009 1:45 pm
OM 1997, Ungaria

Last post by Mateescu Constantin « Fri Jul 31, 2009 1:57 pm
Replies: 3
by Mateescu Constantin » Tue Jul 14, 2009 10:10 pm

3 Replies

332 Views

Last post by Mateescu Constantin
Fri Jul 31, 2009 1:57 pm
Inegalitate in triunghi

Last post by Mateescu Constantin « Tue Jul 14, 2009 3:47 pm
Replies: 5
by opincariumihai » Sat Jul 11, 2009 10:42 pm

5 Replies

495 Views

Last post by Mateescu Constantin
Tue Jul 14, 2009 3:47 pm
Inegalitate in triunghi

Last post by Virgil Nicula « Mon Jul 13, 2009 4:47 am
Replies: 3
by opincariumihai » Fri Jul 10, 2009 4:44 pm

3 Replies

343 Views

Last post by Virgil Nicula
Mon Jul 13, 2009 4:47 am
Inegalitate usoara

Last post by Mateescu Constantin « Sun Jul 12, 2009 7:19 pm
Replies: 1
by Claudiu Mindrila » Sat Jul 11, 2009 10:02 pm

1 Replies

287 Views

Last post by Mateescu Constantin
Sun Jul 12, 2009 7:19 pm
Inegalitate nice

Last post by alex2008 « Sun Jul 12, 2009 2:47 pm
Replies: 2
by Claudiu Mindrila » Sat Jul 11, 2009 11:38 pm

2 Replies

317 Views

Last post by alex2008
Sun Jul 12, 2009 2:47 pm
Doua inegalitati in triunghi "made in Vietnam"

Last post by mihai miculita « Sat Jul 11, 2009 7:39 pm
Replies: 2
by mihai miculita » Thu Jul 09, 2009 6:56 pm

2 Replies

330 Views

Last post by mihai miculita
Sat Jul 11, 2009 7:39 pm
O echivalenta si o implicatie intr-un triunghi ABC.

Last post by Marius Mainea « Sat Jul 11, 2009 4:09 pm
Replies: 1
by Virgil Nicula » Sat Jul 11, 2009 3:24 am

1 Replies

254 Views

Last post by Marius Mainea
Sat Jul 11, 2009 4:09 pm
O inegalitate dificila in triunghi ...

Last post by Marius Mainea « Thu Jul 09, 2009 12:41 pm
Replies: 1
by Virgil Nicula » Thu Jul 09, 2009 3:12 am

1 Replies

256 Views

Last post by Marius Mainea
Thu Jul 09, 2009 12:41 pm
Conditie ca un triunghi sa fie isoscel

Last post by Marius Mainea « Thu Jul 09, 2009 11:07 am
Replies: 1
by Claudiu Mindrila » Wed Jul 08, 2009 4:18 pm

1 Replies

251 Views

Last post by Marius Mainea
Thu Jul 09, 2009 11:07 am
Inegalitate cu lungimile bisectoarelor interioare.

Last post by Marius Mainea « Thu Jul 09, 2009 9:39 am
Replies: 1
by Virgil Nicula » Thu Jul 09, 2009 3:20 am

1 Replies

224 Views

Last post by Marius Mainea
Thu Jul 09, 2009 9:39 am
Inegalitate in 3 variabile

Last post by Marius Mainea « Tue Jul 07, 2009 4:14 pm
Replies: 1
by Mateescu Constantin » Tue Jul 07, 2009 3:29 pm

1 Replies

269 Views

Last post by Marius Mainea
Tue Jul 07, 2009 4:14 pm

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