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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -7m²+2m+1 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -7 * m ^ 2 + 2 * m + 1 >0         (1)

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    From inequality(1)：
         -0.261204 < m < 0.546918

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    The final solution set is :
         -0.261204 < m < 0.546918

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