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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality abs（x^2-1） <2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         abs ( x ^ 2 - 1 ) <2         (1)

---

    From inequality(1)：
         -√3 < x < √3

---

    The final solution set is :
         -√3 < x < √3

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