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

0 Replies

1203 Views

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

Topics

Replies

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Last post

Patrulatere inscriptibile

Last post by mumble « Sun Mar 02, 2008 4:12 pm
Replies: 2
by Filip Chindea » Sat Mar 01, 2008 3:55 pm

2 Replies

1008 Views

Last post by mumble
Sun Mar 02, 2008 4:12 pm
Parte intreaga si puteri

Last post by mumble « Sun Mar 02, 2008 3:35 pm
Replies: 2
by Filip Chindea » Sat Mar 01, 2008 3:52 pm

2 Replies

894 Views

Last post by mumble
Sun Mar 02, 2008 3:35 pm
Inegalitate straightforward - valori absolute

Last post by Filip Chindea « Sat Mar 01, 2008 4:21 pm
Replies: 6
by Filip Chindea » Wed Jan 30, 2008 9:10 pm

6 Replies

1108 Views

Last post by Filip Chindea
Sat Mar 01, 2008 4:21 pm
Inegalitate cu valoare absoluta

Last post by turcas « Sat Mar 01, 2008 3:57 pm
Replies: 1
by Filip Chindea » Sat Mar 01, 2008 3:46 pm

1 Replies

820 Views

Last post by turcas
Sat Mar 01, 2008 3:57 pm
Numarul de solutii ale unei ecuatii in numere naturale

Last post by Filip Chindea « Fri Feb 29, 2008 9:40 pm
Replies: 1
by haralambie » Fri Feb 29, 2008 8:46 pm

1 Replies

500 Views

Last post by Filip Chindea
Fri Feb 29, 2008 9:40 pm
Identitate cu partea intreaga

Last post by Razvan Balan « Sun Feb 24, 2008 3:10 pm
Replies: 2
by Razvan Balan » Thu Feb 21, 2008 10:31 am

2 Replies

787 Views

Last post by Razvan Balan
Sun Feb 24, 2008 3:10 pm
Geometrie cu vectori intr-un pentagon

Last post by Razvan Balan « Thu Feb 21, 2008 10:54 am
Replies: 1
by Filip Chindea » Wed Jan 30, 2008 9:18 pm

1 Replies

606 Views

Last post by Razvan Balan
Thu Feb 21, 2008 10:54 am
Un trapez si o axa radicala (Own).

Last post by mihai++ « Mon Feb 18, 2008 8:42 pm
Replies: 2
by Virgil Nicula » Sun Feb 17, 2008 5:05 pm

2 Replies

674 Views

Last post by mihai++
Mon Feb 18, 2008 8:42 pm
O inegalitate cu H intr-un triunghi ascutitunghic

Last post by Cezar Lupu « Sun Feb 17, 2008 9:42 pm
Replies: 1
by Virgil Nicula » Sun Feb 17, 2008 5:25 pm

1 Replies

629 Views

Last post by Cezar Lupu
Sun Feb 17, 2008 9:42 pm
O problema "slicing" (Own).

Last post by mihai++ « Sun Feb 17, 2008 10:26 am
Replies: 1
by Virgil Nicula » Sat Feb 16, 2008 7:53 pm

1 Replies

524 Views

Last post by mihai++
Sun Feb 17, 2008 10:26 am
Sir de numere impare

Last post by Iulian Cimpean « Tue Feb 12, 2008 11:32 am
Replies: 3
by mihai++ » Fri Feb 01, 2008 8:07 pm

3 Replies

950 Views

Last post by Iulian Cimpean
Tue Feb 12, 2008 11:32 am
Ecuatie functionala din care rezulta functia nula

Last post by mihai++ « Mon Feb 11, 2008 9:06 am
Replies: 1
by cosmin » Thu Feb 07, 2008 7:52 pm

1 Replies

721 Views

Last post by mihai++
Mon Feb 11, 2008 9:06 am
Puncte coliniare

Last post by mihai++ « Mon Feb 11, 2008 8:58 am
Replies: 2
by Marius Perianu » Mon Feb 04, 2008 5:31 pm

2 Replies

1367 Views

Last post by mihai++
Mon Feb 11, 2008 8:58 am
Parte fractionara si multimi

Last post by mumble « Sun Feb 10, 2008 11:07 pm
Replies: 2
by Filip Chindea » Wed Jan 30, 2008 9:03 pm

2 Replies

727 Views

Last post by mumble
Sun Feb 10, 2008 11:07 pm
Ecuatie in numere complexe

Last post by Marius Perianu « Sun Feb 10, 2008 1:37 pm
Replies: 1
by Doru Popovici » Fri Feb 08, 2008 5:18 pm

1 Replies

644 Views

Last post by Marius Perianu
Sun Feb 10, 2008 1:37 pm
Patrat perfect

Last post by mihai++ « Fri Feb 08, 2008 8:03 pm
Replies: 1
by moldo » Fri Feb 08, 2008 10:25 am

1 Replies

672 Views

Last post by mihai++
Fri Feb 08, 2008 8:03 pm
Sa se calculeze suma

Last post by mihai++ « Thu Feb 07, 2008 7:52 pm
Replies: 1
by moldo » Thu Feb 07, 2008 4:58 pm

1 Replies

650 Views

Last post by mihai++
Thu Feb 07, 2008 7:52 pm
Sir de numere reale definit prin recurenta

Last post by mumble « Wed Feb 06, 2008 11:35 pm
Replies: 1
by Marius Perianu » Mon Feb 04, 2008 5:22 pm

1 Replies

797 Views

Last post by mumble
Wed Feb 06, 2008 11:35 pm
Ecuatie cu partea intreaga

Last post by mihai++ « Mon Feb 04, 2008 7:58 pm
Replies: 1
by Marius Perianu » Mon Feb 04, 2008 5:26 pm

1 Replies

725 Views

Last post by mihai++
Mon Feb 04, 2008 7:58 pm
Problema cu multimi

Last post by Marius Perianu « Mon Feb 04, 2008 5:46 pm

by Marius Perianu » Mon Feb 04, 2008 5:46 pm

0 Replies

640 Views

Last post by Marius Perianu
Mon Feb 04, 2008 5:46 pm
Multime de numere intregi de forma x^2-3y^2

Last post by Marius Perianu « Mon Feb 04, 2008 4:29 pm
Replies: 1
by mihai++ » Mon Jan 28, 2008 7:14 pm

1 Replies

723 Views

Last post by Marius Perianu
Mon Feb 04, 2008 4:29 pm
Sir recurent

Last post by mihai++ « Fri Feb 01, 2008 7:52 pm

by mihai++ » Fri Feb 01, 2008 7:52 pm

0 Replies

441 Views

Last post by mihai++
Fri Feb 01, 2008 7:52 pm
Inegalitate conditionata trei variabile

Last post by mumble « Fri Feb 01, 2008 12:22 am
Replies: 2
by Tudorel Lupu » Mon Jan 28, 2008 6:55 pm

2 Replies

996 Views

Last post by mumble
Fri Feb 01, 2008 12:22 am
Patrulater inscriptibil si tr. cu acelasi centru de greutate

Last post by mihai++ « Tue Jan 29, 2008 9:52 am
Replies: 1
by Tudorel Lupu » Mon Jan 28, 2008 7:08 pm

1 Replies

682 Views

Last post by mihai++
Tue Jan 29, 2008 9:52 am
Determinare de numere strict pozitive

Last post by mihai++ « Mon Jan 28, 2008 7:57 pm
Replies: 1
by Tudorel Lupu » Mon Jan 28, 2008 7:02 pm

1 Replies

671 Views

Last post by mihai++
Mon Jan 28, 2008 7:57 pm
I e centrul cercului inscris echivalent cu o rel. vectoriala

Last post by mihai++ « Mon Jan 28, 2008 7:35 pm

by mihai++ » Mon Jan 28, 2008 7:35 pm

0 Replies

544 Views

Last post by mihai++
Mon Jan 28, 2008 7:35 pm
Ecuatie in numere naturale

Last post by mihai++ « Mon Jan 28, 2008 7:28 pm

by mihai++ » Mon Jan 28, 2008 7:28 pm

0 Replies

466 Views

Last post by mihai++
Mon Jan 28, 2008 7:28 pm
Functie periodica definita ca suma de parti fractionare

Last post by Tudorel Lupu « Mon Jan 28, 2008 6:50 pm

by Tudorel Lupu » Mon Jan 28, 2008 6:50 pm

0 Replies

619 Views

Last post by Tudorel Lupu
Mon Jan 28, 2008 6:50 pm
Sir

Last post by Bogdan Cebere « Thu Jan 17, 2008 8:45 pm

by Bogdan Cebere » Thu Jan 17, 2008 8:45 pm

0 Replies

579 Views

Last post by Bogdan Cebere
Thu Jan 17, 2008 8:45 pm
IG perpendicular pe BC (Own).

Last post by mihai++ « Sun Jan 13, 2008 1:41 pm
Replies: 1
by Virgil Nicula » Sun Jan 13, 2008 12:12 pm

1 Replies

860 Views

Last post by mihai++
Sun Jan 13, 2008 1:41 pm
Determinati n pentru care 18^n+6^n+1 e patrat perfect

Last post by Cezar Lupu « Sun Dec 23, 2007 12:39 pm

by Cezar Lupu » Sun Dec 23, 2007 12:39 pm

0 Replies

441 Views

Last post by Cezar Lupu
Sun Dec 23, 2007 12:39 pm
Alte doua inegalitati

Last post by Filip Chindea « Mon Dec 10, 2007 10:20 pm
Replies: 4
by moldo » Sat Dec 08, 2007 7:40 pm

4 Replies

1054 Views

Last post by Filip Chindea
Mon Dec 10, 2007 10:20 pm
Concursul "Teodor Topan" - problema 3

Last post by maky « Mon Dec 03, 2007 2:23 pm
Replies: 1
by maky » Mon Dec 03, 2007 2:21 pm

1 Replies

575 Views

Last post by maky
Mon Dec 03, 2007 2:23 pm
Concursul "Teodor Topan" - problema 2

Last post by maky « Mon Dec 03, 2007 2:21 pm

by maky » Mon Dec 03, 2007 2:21 pm

0 Replies

384 Views

Last post by maky
Mon Dec 03, 2007 2:21 pm
Concursul "Teodor Topan" - problema 1

Last post by maky « Mon Dec 03, 2007 2:20 pm

by maky » Mon Dec 03, 2007 2:20 pm

0 Replies

487 Views

Last post by maky
Mon Dec 03, 2007 2:20 pm
O ecuatie cu parametru

Last post by Filip Chindea « Mon Nov 12, 2007 9:36 pm
Replies: 1
by moldo » Sun Oct 21, 2007 10:33 am

1 Replies

661 Views

Last post by Filip Chindea
Mon Nov 12, 2007 9:36 pm
Inegalitatea 5, trigonometrica, cu (1-cos A) si cosA

Last post by Filip Chindea « Tue Nov 06, 2007 10:10 pm
Replies: 1
by Cezar Lupu » Fri Nov 02, 2007 5:03 am

1 Replies

662 Views

Last post by Filip Chindea
Tue Nov 06, 2007 10:10 pm
Inegalitatea 4, cu radicali

Last post by Filip Chindea « Tue Nov 06, 2007 9:50 pm
Replies: 1
by Cezar Lupu » Mon Nov 05, 2007 2:01 am

1 Replies

531 Views

Last post by Filip Chindea
Tue Nov 06, 2007 9:50 pm
Exista bijectie a planului care duce cercuri in triunghiuri?

Last post by Cezar Lupu « Mon Nov 05, 2007 1:58 am

by Cezar Lupu » Mon Nov 05, 2007 1:58 am

0 Replies

434 Views

Last post by Cezar Lupu
Mon Nov 05, 2007 1:58 am
Inegalitatea 3, geometrica, cu a, b, c, r_a, r_b, r_c

Last post by Filip Chindea « Sun Oct 14, 2007 8:21 pm
Replies: 1
by Cezar Lupu » Sun Oct 14, 2007 11:18 am

1 Replies

687 Views

Last post by Filip Chindea
Sun Oct 14, 2007 8:21 pm
Doua inegalitati

Last post by Radu Titiu « Sat Oct 13, 2007 1:28 pm
Replies: 1
by moldo » Sat Oct 13, 2007 11:20 am

1 Replies

691 Views

Last post by Radu Titiu
Sat Oct 13, 2007 1:28 pm
Problema cu multimi

Last post by Filip Chindea « Tue Oct 02, 2007 10:18 pm
Replies: 1
by Alex Dura » Wed Sep 26, 2007 10:33 pm

1 Replies

682 Views

Last post by Filip Chindea
Tue Oct 02, 2007 10:18 pm
O problema din ... 1885

Last post by red_dog « Mon Oct 01, 2007 6:52 pm
Replies: 1
by Virgil Nicula » Mon Oct 01, 2007 1:55 pm

1 Replies

812 Views

Last post by red_dog
Mon Oct 01, 2007 6:52 pm
O dificila inegalitate geometrica (Own, CRUX).

Last post by red_dog « Mon Oct 01, 2007 6:33 pm
Replies: 1
by Virgil Nicula » Sun Sep 30, 2007 2:27 pm

1 Replies

816 Views

Last post by red_dog
Mon Oct 01, 2007 6:33 pm
O inegalitate trigonometrica

Last post by red_dog « Mon Oct 01, 2007 6:22 pm
Replies: 1
by Virgil Nicula » Sun Sep 30, 2007 2:44 pm

1 Replies

750 Views

Last post by red_dog
Mon Oct 01, 2007 6:22 pm
Inegalitate cu conditia a+b+c=1

Last post by Radu Titiu « Sun Sep 30, 2007 3:17 pm
Replies: 2
by Radu Titiu » Sun Sep 30, 2007 1:13 pm

2 Replies

932 Views

Last post by Radu Titiu
Sun Sep 30, 2007 3:17 pm
Caracterizare a unghiului drept intr-un triunghi

Last post by pohoatza « Sun Sep 30, 2007 2:51 pm
Replies: 1
by Virgil Nicula » Sun Sep 30, 2007 2:32 pm

1 Replies

730 Views

Last post by pohoatza
Sun Sep 30, 2007 2:51 pm
Constructia unei functii definita pe o multime finita

Last post by Alin Galatan « Sat Sep 29, 2007 4:18 pm
Replies: 1
by Virgil Nicula » Sat Sep 29, 2007 12:52 pm

1 Replies

834 Views

Last post by Alin Galatan
Sat Sep 29, 2007 4:18 pm
Inegalitate cu min max

Last post by Alin Galatan « Fri Sep 28, 2007 9:43 pm
Replies: 2
by Alin Galatan » Thu Sep 27, 2007 10:10 pm

2 Replies

807 Views

Last post by Alin Galatan
Fri Sep 28, 2007 9:43 pm
O expresie nenula

Last post by Cezar Lupu « Thu Sep 27, 2007 10:12 pm
Replies: 1
by Alin Galatan » Thu Sep 27, 2007 10:07 pm

1 Replies

683 Views

Last post by Cezar Lupu
Thu Sep 27, 2007 10:12 pm

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