已知x+y=2xy,(4x-5xy+4y)\(x+xy+y)=______

问题描述:

已知x+y=2xy,(4x-5xy+4y)\(x+xy+y)=______

=(8xy-5xy)\(2xy+xy)=1

1

(4X-5XY+4Y)/(X+XY+Y)=/(X+Y+XY)=(4*2XY-5XY)/(2XY+XY)=3XY/3XY=1