x,y满足(10y-3x)/(3x-y)=2 且x大于0求(3x^2-2y^2)/(5y^2-x^2)=
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x,y满足(10y-3x)/(3x-y)=2且x大于0求(3x^2-2y^2)/(5y^2-x^2)=x,y满足(10y-3x)/(3x-y)=2且x大于0求(3x^2-2y^2)/(5y^2-x^2
x,y满足(10y-3x)/(3x-y)=2 且x大于0求(3x^2-2y^2)/(5y^2-x^2)=
x,y满足(10y-3x)/(3x-y)=2 且x大于0求(3x^2-2y^2)/(5y^2-x^2)=
x,y满足(10y-3x)/(3x-y)=2 且x大于0求(3x^2-2y^2)/(5y^2-x^2)=
对(10y-3x)/(3x-y)=2化去分母有
(4/3)y=x
代入所求式有
(3x^2-2y^2)/(5y^2-x^2)
=30/29
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