Overview: 3 questions will be solved this time.Among them
           ☆3 inequalities

[ 1/3Inequality]
    Assignment:Find the solution set of inequality K >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         K >0         (1)

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    From inequality(1)：
         K ＞ 0

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

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    From inequality(1)：
         K < 0 或  K ＞ 1
    From inequality(2)：
         K < 0 或  K ＞ 0

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    From inequalities (1) and (2)
         K < 0 或  K ＞ 1    (3)

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

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    From inequality(1)：
         K < 1
    From inequality(2)：
         K < 1 或  K ＞ 1

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    From inequalities (1) and (2)
         K < 1    (3)

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    The final solution set is :
         K < 1

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