圆x^2+Y^2+8x-6y+24=0关于y轴对称的圆的方程是
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x*x+2x-y*y+6y-8=0,x+y不等于2,求x-y的值
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【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
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{x+y=1 ,xy=-6{x(2x-3)=0,y=x²-1{(3x+4y-3)(3x+4y+3)=0,3x+2y=5{(x-y+2)(x+y)=0,x²+y²=8{(x+y)((x+y-1)=0,(x-y)(x-y-1)=0
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
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若x^2+y^2-6x+8y+25=0 则y/x-x/y的值是
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已知|5x-y-8|+(7y-x+2)=0则4x+6y
圆x^2+Y^2+8x-6y+24=0关于y轴对称的圆的方程是