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

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

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    From inequality(1)：
         A < 3
    From inequality(2)：
         A ＞ -1

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    From inequalities (1) and (2)
         -1 < A < 3     (3)

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    The final solution set is :
         -1 < A < 3

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