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

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

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

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    From inequalities (1) and (2)
         k < -1 或  k ＞ 1/2    (4)
    From inequalities (3) and (4)
         k < -1 或  k ＞ 1/2    (5)

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    The final solution set is :
         k < -1 或  k ＞ 1/2

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