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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -1/2 <-log（9，x） .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -1 / 2 < - log( 9 , x )         (1)
        From the definition field of log
         9 > 0        (2 )
         x > 0 并且 ≠ 1        (3 )

---

    From inequality(1)：
         x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
    From inequality(2)：
         x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
    From inequality(3)：
         0 < x < 1 或  x ＞ 1

---

    From inequalities (1) and (2)
         x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!    (4)
    From inequalities (3) and (4)
         0 < x < 1 或  x ＞ 1    (5)

---

    The final solution set is :
         0 < x < 1 或  x ＞ 1

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