।1 - 2x। < 1
- 1 < 1 - 2x < 1
- 1 - 1< 1 - 2x - 1 < 1 - 1
- 2 < - 2x < 0
- 2/2 < - 2x/2 < 0/2
- 1 < - x < 0
- 1 ( - 1)> - x ( - 1) > 0( - 1)
1 > x > 0
0 < x < 1