mateforum.ro Forum Index mateforum.ro

 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Problema clasa a VII a. Din gazeta matematica

 
Post new topic   Reply to topic    mateforum.ro Forum Index -> Gimnaziu -> Clasa a 7-a
View previous topic :: View next topic  
Author Message
emanuel92k



Joined: 21 Dec 2016
Posts: 3

PostPosted: Wed Dec 21, 2016 2:02 pm    Post subject: Problema clasa a VII a. Din gazeta matematica Reply with quote

Fie ABC un triunghi si (AD , D pe(BC); (BE, E pe (AC); (CF, F pe (AB) bisectoarele unghiurilor sale.
Aratati ca:
1/AE + 1/BF + 1/CD = 1/AF + 1/ BD +1/CE.

Eu m-am gandit sa utilizez Teorema bisectoarelor si rapoarte derivate.
As fi foarte recunoscator daca mi-ati putea da cateva indicatii/sugestii, nu neaparat rezolvarea.
Back to top
View user's profile Send private message
Laurian Filip
Site Admin


Joined: 25 Nov 2007
Posts: 473
Location: Bucuresti

PostPosted: Thu Dec 22, 2016 2:57 pm    Post subject: Reply with quote

In gazeta se mentioneaza ca problema asta este legata de o alta. Ai incercat sa o faci pe aceea inainte? Gandeste-te putin la forma reciproca a acelei probleme; o sa vezi ca e mult mai usor sa gaseste solutia si, foarte usor, iti va rezolva problema initiala.
_________________
Bac Mat: Formule bacalaureat matematica
Triangle Solver: Rezolva orice triunghi
Gaseste Scrabble: Castiga la jocul cuvintelor
Resigilate PCG: Top oferte desigilate pcg + istoric pret
Back to top
View user's profile Send private message Visit poster's website
emanuel92k



Joined: 21 Dec 2016
Posts: 3

PostPosted: Sat Dec 24, 2016 12:19 am    Post subject: Reply with quote

Daca poti sa imi faci o poza sau sa imi scri problema aceea care spui ca m-ar ajuta, ti-as fi foarte recunoscator. Nu am gazeta.
Back to top
View user's profile Send private message
Laurian Filip
Site Admin


Joined: 25 Nov 2007
Posts: 473
Location: Bucuresti

PostPosted: Sat Dec 24, 2016 10:58 am    Post subject: Reply with quote

Am pus o poza aici.
_________________
Bac Mat: Formule bacalaureat matematica
Triangle Solver: Rezolva orice triunghi
Gaseste Scrabble: Castiga la jocul cuvintelor
Resigilate PCG: Top oferte desigilate pcg + istoric pret
Back to top
View user's profile Send private message Visit poster's website
emanuel92k



Joined: 21 Dec 2016
Posts: 3

PostPosted: Mon Dec 26, 2016 2:12 am    Post subject: Reply with quote

Mersi mult !!! O sa ma uit peste acea problema !!!
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    mateforum.ro Forum Index -> Gimnaziu -> Clasa a 7-a All times are GMT + 2 Hours
Page 1 of 1

 
Jump to:  
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



Powered by phpBB © 2001, 2005 phpBB Group