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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (1.5/x+7)*16*0.064*0.064/(3.14*3.14*x*x*x*x*2*9.8) ≤2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1.5 / x + 7 ) * 16 * 0.064 * 0.064 / ( 3.14 * 3.14 * x * x * x * x * 2 * 9.8 ) ≤2         (1)
        From the definition field of divisor
        x ≠ 0        (2 )
        From the definition field of divisor
         3.14 * 3.14 * x * x * x * x * 2 * 9.8 ≠ 0        (3 )

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    From inequality(1)：
         x ≤ -0.000268 或  x ≥ 0.220011
    From inequality(2)：
         x < 0 或  x ＞ 0
    From inequality(3)：
         x < 0 或  x ＞ 0

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    From inequalities (1) and (2)
         x ≤ -0.000268 或  x ≥ 0.220011    (4)
    From inequalities (3) and (4)
         x ≤ -0.000268 或  x ≥ 0.220011    (5)

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    The final solution set is :
         x ≤ -0.000268 或  x ≥ 0.220011

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