Question

求第一个式子到第二个式子的计算过程，每一步都要，谢谢

就单纯的要这个计算过程

Answer 1

π/2≤2x-π/6≤3π/2
不是等式两边同时加上π/6
π/2+π/6≤2x-π/6+π/6≤3π/2+π/6
3π/6+π/6≤2x≤9π/6+π/6
4π/6≤2x≤10π/6
2π/3≤2x≤5π/3
不等式两边同时除以2
2π/3/2≤2x/2≤5π/3/2
2π/6≤x≤5π/6
π/3≤x≤5π/6

追答

π/2≤2x-π/6≤3π/2
π/2+π/6≤2x-π/6+π/6≤3π/2+π/6
3π/6+π/6≤2x≤9π/6+π/6
4π/6≤2x≤10π/6
2π/3≤2x≤5π/3
2π/3/2≤2x/2≤5π/3/2
2π/6≤x≤5π/6
π/3≤x≤5π/6

Answer 2

π/2≤2x－π/6≤3π/2
解：左右两边都加上π/6得
2π/3≤2x≤5π/3
同时除以2得
π/3≤x≤5π/6

Answer 3

两边同除2得
π/4≤x-π/12≤3π/4
π/4+π/12≤x≤3π/4+π/12
π/3≤x≤5π/6