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1,[tex]\left{\frac{x}{y}+\frac{y}{x}=\frac{26}{5}\\{x^2-y^2=24}[/tex]
2,[tex]\left{x^2+y^2=2x^2y^2\\{x+y+1=3x^2}[/tex]
3,[tex]\left{x+y+\frac{x}{y}=4\\{x^2+xy-y=0}[/tex]
4,[tex]\left{x-2y+\frac{x}{y}=6\\{x^2-2xy-6y=0}[/tex]
2,[tex]\left{x^2+y^2=2x^2y^2\\{x+y+1=3x^2}[/tex]
3,[tex]\left{x+y+\frac{x}{y}=4\\{x^2+xy-y=0}[/tex]
4,[tex]\left{x-2y+\frac{x}{y}=6\\{x^2-2xy-6y=0}[/tex]
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