(x+y-1)-xy=0的函数怎么画
问题描述:
(x+y-1)-xy=0的函数怎么画
答
变下形:(x+y-1)-xy=0==>x+y-1-xy=0==>x-1+y(1-x)=0 y=(x-1)/(1-x)=-1 x≠1
(x+y-1)-xy=0的函数怎么画
变下形:(x+y-1)-xy=0==>x+y-1-xy=0==>x-1+y(1-x)=0 y=(x-1)/(1-x)=-1 x≠1