4x²-4x+1>0
(2x-1)＞0
∴x＜½或x＞½
-x²+2x-2＞0
x²-2x+2＜0
(x-1)²+1＜0
∴原不等式无解
1/x＜1
1/x-x/x＜0
(1-x)/x＜0
(x-1)/x＞0
x＜0或x＞1
x(x-1)(x+2)＞0
∴-2＜x＜0或x＞1第一个不等式答案应该是 x≠1/2 吧...?!x＜½或x＞½与x≠1/2一样额- -傻了....对~4x²-4x+1>0 (2x-1)²＞0∴x＜½或x＞½少个平方，补上