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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (1-x^2)^2+(0.45x)^2-0.81 <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1 - x ^ 2 ) ^ 2 + ( 0.45 * x ) ^ 2 - 0.81 <0         (1)

---

    From inequality(1)：
         -1.297968 < x < -0.335825 或  0.335825 < x < 1.297968

---

    The final solution set is :
         -1.297968 < x < -0.335825 或  0.335825 < x < 1.297968

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