Inegalitate conditionata (URAL-2015)

mihai miculita
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Membru din: Mar Oct 26, 2010 9:21 pm
Localitate: ORADEA

Inegalitate conditionata (URAL-2015)

Mesaj de mihai miculita »

Aratati ca:
$\left\begin{array}{c} (\forall)a,b,c,d\in\mathbb{R}\\ a+b=c+d=1\end{array}\right\}\Rightarrow \boxed{a^2b+c^2d\ge bd}.$
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