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Punctul de intersectie a doua functii liniare

Posted: Sun Mar 22, 2009 5:23 pm
by Claudiu Mindrila
Se considera doua functii \( f:\mathbb{R}\rightarrow\mathbb{R} \), \( g:\mathbb{R}\rightarrow\mathbb{R} \) care satisfac relatiile: \( f\left(x-1\right)=2x-3+g\left(1\right)-f\left(1\right) \), \( g\left(x-1\right)=4x+5-g\left(1\right)-f\left(1\right) \) pentru orice \( x\in\mathbb{R} \).

a) Determinati functiile \( f \) si \( g \).
b) Aflati, daca exista, punctul de intersectie al graficelor celor doua functii

Gazeta Matematica 12/2008; concursul "Gh. Lazar", 2009

Posted: Thu Mar 26, 2009 10:21 pm
by mihai miculita
\( \mbox{Am postat solutia acestei probleme pe mathlinks, aici: } \)
http://www.mathlinks.ro/viewtopic.php?t=266803