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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 4t^4-9t^2-t+4 <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        4 * t ^ 4 - 9 * t ^ 2 - t + 4 <0         (1)

---

    From inequality(1)：
         -1.062443 < t < -1 或  0.681664 < t < 1.380779

---

    The final solution set is :
         -1.062443 < t < -1 或  0.681664 < t < 1.380779

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