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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -2 <（a+（a-4）^1/2） <2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -2 < ( a + ( a - 4 ) ^ 1 / 2 )         (1)
         ( a + ( a - 4 ) ^ 1 / 2 ) <2         (2)

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    From inequality(1)：
         a ＞ 0
    From inequality(2)：
         a < 8/3

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    From inequalities (1) and (2)
         0 < a < 8/3     (3)

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    The final solution set is :
         0 < a < 8/3

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