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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (98*t^3-63*t^2+3) <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 98 * t ^ 3 - 63 * t ^ 2 + 3 ) <0         (1)

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    From inequality(1)：
         t < -0.191541 或  0.297893 < t < 0.536504

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    The final solution set is :
         t < -0.191541 或  0.297893 < t < 0.536504

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