若36x^2-12xy+y^2=0,则x/y+y/x的值是
问题描述:
若36x^2-12xy+y^2=0,则x/y+y/x的值是
答
36x^2-12xy+y^2=0
(6x-y)^2=0
6x-y=0
y=6x
所以原式=x/6x+6x/x
=1/6+6
=37/6