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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 570*1000/(x+1000)*5 <1000*0.003 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        570 * 1000 / ( x + 1000 ) * 5 <1000 * 0.003         (1)
        From the definition field of divisor
         x + 1000 ≠ 0        (2 )

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    From inequality(1)：
        The solution set is empty, that is, within the range of real numbers, the inequality will never be established!
    From inequality(2)：
         x < -1000 或  x ＞ -1000

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    The final solution set is :
        The solution set is empty,that is, the inequality will never be estatlished within the real number range.

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