[4/(x^2-y^2)+(x+y)/(xy^2-x^2y)] / (x^2+xy-2y^2)/(x^2y+2xy^2) 其中,a=13,b=12
来源:学生作业学帮网 编辑:学帮网 时间:2024/05/08 06:20:42
[4/(x^2-y^2)+(x+y)/(xy^2-x^2y)] / (x^2+xy-2y^2)/(x^2y+2xy^2) 其中,a=13,b=12
=[-(X-Y)/XY(X=Y)]*[XY/(X-Y)]=-1/(X+Y)=-1/25
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来源:学生作业学帮网 编辑:学帮网 时间:2024/05/08 06:20:42
[4/(x^2-y^2)+(x+y)/(xy^2-x^2y)] / (x^2+xy-2y^2)/(x^2y+2xy^2) 其中,a=13,b=12
=[-(X-Y)/XY(X=Y)]*[XY/(X-Y)]=-1/(X+Y)=-1/25