T
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Cho x,y,z>0 và x+y+z=1.
Tìm min [TEX]T=\sqrt{\frac{1-x}{1+x}}+\sqrt{\frac{1-y}{1+y}}+\sqrt{\frac{1-z}{1+z}}[/TEX]
Tìm min [TEX]T=\sqrt{\frac{1-x}{1+x}}+\sqrt{\frac{1-y}{1+y}}+\sqrt{\frac{1-z}{1+z}}[/TEX]