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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2sqrt(m^2+m) ≤m .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2 * sqrt ( m ^ 2 + m ) ≤ m         (1)
        From the definition field of √
         x ^ 2 + x ≥ 0        (2 )

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    From inequality(1)：
         m ≤ 0
    From inequality(2)：
         m ≤ -1 或  m ≥ 0

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    From inequalities (1) and (2)
         m ≤ -1 或  0 ≤ m ≤ 0    (3)

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    The final solution set is :
         m ≤ -1 或  0 ≤ m ≤ 0

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