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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0     Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        0 < abs ( x / ( x + 1 ) )         (1)
         abs ( x / ( x + 1 ) ) ≤1         (2)
        From the definition field of divisor
         x + 1 ≠ 0        (3 )

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    From inequality(1)：
         x < 0 或  x ＞ 0
    From inequality(2)：
         x ≥ -1/2
    From inequality(3)：
         x < -1 或  x ＞ -1

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    From inequalities (1) and (2)
         -1/2 ≤ x < 0 或  x ＞ 0    (4)
    From inequalities (3) and (4)
         -1/2 ≤ x < 0 或  x ＞ 0    (5)

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    The final solution set is :
         -1/2 ≤ x < 0 或  x ＞ 0

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