已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
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已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
4x^2+y-4x-6y+10=0
(2x-1)^2+(y-3)^2=0
x=1/2 y=3
y/x-x/y=6-1/6=35/6
左边=(2x-1)^2+(y-3)^2=0
所以x=1/2,y=3
y/x-x/y=35/6
4(x-1/2)^2+(y-3)^2=0
x=1/2 y=3
y/x-x/y=35/6
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