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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 920a÷(a∧2＋3a＋1600) ≥10 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        920 * a ÷ ( a ^ 2 + 3 * a + 1600 ) ≥10         (1)

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    From inequality(1)：
         25 ≤ a ≤ 64

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    The final solution set is :
         25 ≤ a ≤ 64

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