Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality π/6 <（π/15）t-π/2 <5π/6 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
         π / 6 < ( π / 15 ) * t - π / 2         (1)
         ( π / 15 ) * t - π / 2 <5 * π / 6         (2)

---

    From inequality(1)：
         t ＞ 10
    From inequality(2)：
         t < 20

---

    From inequalities (1) and (2)
         10 < t < 20     (3)

---

    The final solution set is :
         10 < t < 20

Your problem has not been solved here? Please take a look at the  hot problems ！