B
bandcrid


Cho a, b, x, y là những số thực thỏa mãn: [TEX]\left{\begin {\frac{x^4}{a} + \frac{y^4}{b}=\frac{1}{a+b}} (2) \\ {x^2 + y^2 = 1} (3)[/TEX]
CMR: [TEX]\frac{x^{2012}}{a^{1006}}+\frac{y^{2012}}{b^{1006}}=\frac{2}{(a+b)^{1006}}[/TEX]
CMR: [TEX]\frac{x^{2012}}{a^{1006}}+\frac{y^{2012}}{b^{1006}}=\frac{2}{(a+b)^{1006}}[/TEX]
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