问题 填空题
当x<1时,
(x-1)2
=______;当1<x<3时,|1-x|+
x2-6x+9
=______.
答案

∵x<1,

(x-1)2
=1-x,

∵1<x<3,

|1-x|+

x2-6x+9
=x-1+(3-x)=2.

故答案为:1-x,2.

判断题
判断题