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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -2 <1/-2m <1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -2 <1 / -2 * m         (1)
        1 / -2 * m <1         (2)

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    From inequality(1)：
         m < 4
    From inequality(2)：
         m ＞ -2

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    From inequalities (1) and (2)
         -2 < m < 4     (3)

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    The final solution set is :
         -2 < m < 4

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