26.03.2012 - inegalitati [cls IX-X]
Scris: Mie Mar 28, 2012 7:36 pm
Fie $x,y,z>0$.Sa se determine minimul expresiei $\dfrac{4x}{x+y+2z}+\dfrac{y+3z}{4x+y+z}-\dfrac{8x}{x+y+3z}$
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