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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 30*b^2+1330*b-5880 >= 0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        30 * b ^ 2 + 1330 * b - 5880 >= 0         (1)

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    From inequality(1)：
         b ≤ -48.384239 或  b ≥ 4.050906

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    The final solution set is :
         b ≤ -48.384239 或  b ≥ 4.050906

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