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

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

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    From inequality(1)：
         a ＞ 0
    From inequality(2)：
         a < 1

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    From inequalities (1) and (2)
         0 < a < 1     (3)

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    The final solution set is :
         0 < a < 1

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