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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 8000t^2-7500t-1800 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        8000 * t ^ 2 - 7500 * t - 1800 >0         (1)

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    From inequality(1)：
         t < -0.198128 或  t ＞ 1.135628

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    The final solution set is :
         t < -0.198128 或  t ＞ 1.135628

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