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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality sqrt(a^2-a-2)-a <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         sqrt ( a ^ 2 - a - 2 ) - a <0         (1)
        From the definition field of √
         x ^ 2 - x - 2 ≥ 0        (2 )

---

    From inequality(1)：
         a ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
    From inequality(2)：
         a ≤ -1 或  a ≥ 2

---

    From inequalities (1) and (2)
         a ≤ -1 或  a ≥ 2    (3)

---

    The final solution set is :
         a ≤ -1 或  a ≥ 2

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