T
tieuthienthan93


tìm G[TEX]TLN - GTNN [/TEX]của [TEX]T = x+y+z[/TEX] biết :
[TEX]y^2+yz+z^2 = 1-\frac{3}{2}x^2[/TEX]
[TEX]y^2+yz+z^2 = 1-\frac{3}{2}x^2[/TEX]
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