x=(4k²)/(1+k²) y=(4k³)/(1+k²)参数怎么消去?

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x=(4k²)/(1+k²) y=(4k³)/(1+k²)参数怎么消去?
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x=(4k²)/(1+k²) y=(4k³)/(1+k²)参数怎么消去?
x=(4k²)/(1+k²) y=(4k³)/(1+k²)参数怎么消去?

x=(4k²)/(1+k²) y=(4k³)/(1+k²)参数怎么消去?
x/y=1/k
然后把k=y/x带入原方程