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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.861*10^5*（26.6^1.74/X÷4.74）*440*0.390 <= 0.2*20 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.861 * 10 ^ 5 * ( 26.6 ^ 1.74 / X ÷ 4.74 ) * 440 * 0.390 <= 0.2 * 20         (1)
        From the definition field of divisor
        x ≠ 0        (2 )

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    From inequality(1)：
         X ≤ 0
    From inequality(2)：
         X < 0 或  X ＞ 0

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    From inequalities (1) and (2)
         X < 0    (3)

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    The final solution set is :
         X < 0

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