问题
填空题
若x+y=1,且x≠0,则(x+
|
答案
(x+
)÷2xy+y2 x
=x+y x
×x2+2xy+y2 x
=x x+y
•(x+y)2 x
=x+y,x x+y
把x+y=1代入上式得:
原式=1;
故答案为:1.
若x+y=1,且x≠0,则(x+
|
(x+
)÷2xy+y2 x
=x+y x
×x2+2xy+y2 x
=x x+y
•(x+y)2 x
=x+y,x x+y
把x+y=1代入上式得:
原式=1;
故答案为:1.