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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.095r+164.25/r-5279.4645/(r^3) <21 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.095 * r + 164.25 / r - 5279.4645 / ( r ^ 3 ) <21         (1)
        From the definition field of divisor
        x ≠ 0        (2 )
        From the definition field of divisor
         x ^ 3 ≠ 0        (3 )

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    From inequality(1)：
         r < -4.500294 或  r ＞ 0.0001
    From inequality(2)：
         r < 0 或  r ＞ 0
    From inequality(3)：
         r < 0 或  r ＞ 0

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    From inequalities (1) and (2)
         r < -4.500294 或  r ＞ 0.0001    (4)
    From inequalities (3) and (4)
         r < -4.500294 或  r ＞ 0.0001    (5)

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    The final solution set is :
         r < -4.500294 或  r ＞ 0.0001

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