解方程组4x^2-xy+3y=0 2x^2-y^2-y-0
解方程组4x^2-xy+3y=0 2x^2-y^2-y-0
数学人气:618 ℃时间:2020-01-21 18:36:21
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4x^2-xy+3y=0 .(1)式2x^2-y^2-y=0.(2)式由(1)式得到:y=4x^2/(x-3)代入(2)式得到:2x^2-16x^4/(x-3^)^2-4x^2/(x-3)2x^2[1-8x^2/(x-3)^2-2/(x-3)]=0.(3)式 x的第一个解为x1=0,y1=4x1^2/(x1-3)=0当x≠0时,(3)式可化简...
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