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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (1/x)+2 >(4/x)-4 >3x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
         ( 1 / x ) + 2 > ( 4 / x ) - 4         (1)
        From the definition field of divisor
        x ≠ 0        (2 )
         ( 4 / x ) - 4 >3 * x         (3)
        From the definition field of divisor
        x ≠ 0        (4 )

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    From inequality(1)：
         x < 0 或  x ＞ 1/2
    From inequality(2)：
         x < 0 或  x ＞ 0
    From inequality(3)：
         x < -2 或  0 < x < 2/3
    From inequality(4)：
         x < 0 或  x ＞ 0

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    From inequalities (1) and (2)
         x < 0 或  x ＞ 1/2    (5)
    From inequalities (3) and (5)
         x < -2 或  1/2 < x < 2/3     (6)
    From inequalities (4) and (6)
         x < -2 或  1/2 < x < 2/3     (7)

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    The final solution set is :
         x < -2 或  1/2 < x < 2/3

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