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)=______
答
=(8xy-5xy)\(2xy+xy)=1
答
1
答
(4X-5XY+4Y)/(X+XY+Y)=/(X+Y+XY)=(4*2XY-5XY)/(2XY+XY)=3XY/3XY=1