初高衔接数学题

学习 时间:2026-04-02 20:25:52 阅读:1341
X×y-y^2分之x乘以根号x+X乘以根号y - Xxx根号x-y根号x/y加根号x×y+y

最佳回答

漂亮的手套

风趣的板凳

2026-04-02 20:25:52

(y*根号x+x*根号y)/(xy-y2)-(x+根号xy+y)/(x根号x-y根号y)=(y√x+x√y)/y(x-y)-((x+√xy+y)/((√x)^3-(√y)^3))=(y√x+x√y)/y(x-y)-((x+√xy+y)/((√x-√y)((x+√xy+y)))=(y√x+x√y)/(x-y)-(1/(√x-√y))=((y√x+x√y)-y(√x+√y))/y(x-y)=(y√x+x√y-y√x-y√y))/y(x-y)=(x-y)√y/y(x-y)=√y/y

最新回答共有2条回答

  • 轻松的秀发
    回复
    2026-04-02 20:25:52

    (y*根号x+x*根号y)/(xy-y2)-(x+根号xy+y)/(x根号x-y根号y)=(y√x+x√y)/y(x-y)-((x+√xy+y)/((√x)^3-(√y)^3))=(y√x+x√y)/y(x-y)-((x+√xy+y)/((√x-√y)((x+√xy+y)))=(y√x+x√y)/(x-y)-(1/(√x-√y))=((y√x+x√y)-y(√x+√y))/y(x-y)=(y√x+x√y-y√x-y√y))/y(x-y)=(x-y)√y/y(x-y)=√y/y

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