S
spring_summer1996


a, Tìm x,y,z thoả mãn [TEX]\sqrt[2]{x} + \sqrt[2]{y-1} + \sqrt[2]{z-2} = 1/2(x+y+z) [/TEX]
b, Tìm a,b,c [TEX]\geq0[/TEX] thoả mãn
[TEX]\sqrt[2]{a-b+c}=\sqrt[2]{a} -\sqrt[2]{b}+\sqrt[2]{c}[/TEX]
b, Tìm a,b,c [TEX]\geq0[/TEX] thoả mãn
[TEX]\sqrt[2]{a-b+c}=\sqrt[2]{a} -\sqrt[2]{b}+\sqrt[2]{c}[/TEX]
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