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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (10000.5-0.8n)/(0.4(n^0.5)) ≤-2.75 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 10000.5 - 0.8 * n ) / ( 0.4 * ( n ^ 0.5 ) ) ≤ -2.75         (1)
        From the definition field of divisor
         0.4 * ( x ^ 0.5 ) ≠ 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)：
         n ∈ R （R为全体实数），即在实数范围内，不等式恒成立！

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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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