x2-y2=xy,xy不等于0求x2/y2=y2/x2

x2-y2=xy,xy不等于0求x2/y2=y2/x2
x2-y2=xy,xy不等于0求x2/y2=y2/x2

x2-y2=xy,xy不等于0求x2/y2=y2/x2
是求x2/y2+y2/x2= 吗
x2-y2=xy
则x/y-y/x=1
两边平方得
x^2/y^2-2+y^2/x^2=1
所以 x^2/y^2+y^2/x^2=3

"x2/y2=y2/x2"是什么意思