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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3.9a^3+3.9 >6a^2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        3.9 * a ^ 3 + 3.9 >6 * a ^ 2         (1)

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    From inequality(1)：
         a ＞ -0.672523

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    The final solution set is :
         a ＞ -0.672523

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