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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 1-2a^3-3a^2 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1 - 2 * a ^ 3 - 3 * a ^ 2 >0         (1)

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    From inequality(1)：
         a < -1 或  -1 < a < 1/2

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    The final solution set is :
         a < -1 或  -1 < a < 1/2

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