Question

一元一次不等式

(a-2)x>1
1/x>2

Answer 1

(a-2)x>1
a-2>0 a>2 shi
x>1/(a-2)
a-2<0 a<2 shi
x>1/(a-2)

1/x>2
x>0 shi 1>2x x<1/2
0<x<1/2

x<0 shi 1<2x x>1/2 wujie

ze 0<x<1/2