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Phamanhnguyet192

Phamanhnguyet192

Member Since 16-04-2016
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#628072 Tính $S=x+y+z$

Posted by Phamanhnguyet192 on 18-04-2016 - 22:02

Cho x, y, z thỏa mãn:$\frac{2}{x+y}+\frac{2}{y+z}+\frac{2}{z+x}=\frac{1007x}{x+y}+\frac{1007y}{y+z}+\frac{1007z}{z+x}=2014$. Tính tổng S = x + y + z.




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