giải hệ pt: $\left\{\begin{matrix} x+\frac{y}{\sqrt{1+x^{2}}+x}+y^{2}=0 & \\ \frac{x^{2}}{y^{2}}+2\sqrt{x^{2}+1}+y^{2}=3 & \end{matrix}\right.$
Giải hệ pt:
Started By luuvanthai, 07-01-2019 - 21:13
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