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Giải hệ pt:

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luuvanthai

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giải hệ pt: $\left\{\begin{matrix} x+\frac{y}{\sqrt{1+x^{2}}+x}+y^{2}=0 & \\ \frac{x^{2}}{y^{2}}+2\sqrt{x^{2}+1}+y^{2}=3 & \end{matrix}\right.$






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