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URGENT !!!

 
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alex1996bc

[Benningtonnes]



Status: Offline
(since 07-03-2016 19:20)
Joined: 21 Feb 2010
Posts: 803, Topics: 83
Location: Bucuresti

Reputation: 32.5
Votes: 34

 
Post Posted: 22-11-2011, 18:23:50 | Translate post to: ... (Click for more languages)

Ni se dau:
Vectorii de pozitie rA,rB,rC;
Trebuie sa avem coordonatele lui rD astfel incat patrulaterul ABCD sa fie paralelogram. ( Asta stiu sa rezolv, dar e nevoie la punctul b) unde n-am nici cea mai vaga idee...)
Punctul b)
Sa se determine vectorul de pozitie al unui punct P(n+1;3-n) astfel incat AC || BP ...
Este o varianta de teza , pe care eu o dau maine si vreau sa o stiu perfect!!!
Daca se poate cat mai urgent rezolvarea !!!




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tReNuLetzZz

[GlontzzZ.de.L3mN]



Status: Offline
(since 29-03-2012 09:31)
Joined: 28 Apr 2011
Posts: 526, Topics: 17
Location: Undeva prin Romania :))

Reputation: 61.8
Votes: 8

Post Posted: 22-11-2011, 22:14:28 | Translate post to: ... (Click for more languages)

Este o formula care demonstreaza asta dar numai stiu sigur care e-





Cu stima GlOntzzZ.de.L3mN ! -
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