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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (x-2)/(x+5) <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( x - 2 ) / ( x + 5 ) <0         (1)
        From the definition field of divisor
         x + 5 ≠ 0        (2 )

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    From inequality(1)：
         -5 < x < 2
    From inequality(2)：
         x < -5 或  x ＞ -5

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    From inequalities (1) and (2)
         -5 < x < 2     (3)

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    The final solution set is :
         -5 < x < 2

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