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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -1572.599-(480.705×n)+n^2/3×(192.474+15.044×n)×(577.422+30.088×n)/(384.948+30.088×n)-0.4×n^2×(154.33+5.8×n)×(462.99+11.6×n)/(308.66+11.6×n) ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -1572.599 - ( 480.705 × n ) + n ^ 2 / 3 × ( 192.474 + 15.044 × n ) × ( 577.422 + 30.088 × n ) / ( 384.948 + 30.088 × n ) - 0.4 × n ^ 2 × ( 154.33 + 5.8 × n ) × ( 462.99 + 11.6 × n ) / ( 308.66 + 11.6 × n ) ≥0         (1)
        From the definition field of divisor
         384.948 + 30.088 × x ≠ 0        (2 )
        From the definition field of divisor
         308.66 + 11.6 × x ≠ 0        (3 )

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    From inequality(1)：
         -12.104797 ≤ n ≤ -3.404968 或  n ≥ 14.159319
    From inequality(2)：
         n < -12.794071 或  n ＞ -12.794071
    From inequality(3)：
         n < -26.608621 或  n ＞ -26.608621

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    From inequalities (1) and (2)
         -12.104797 ≤ n ≤ -3.404968 或  n ≥ 14.159319    (4)
    From inequalities (3) and (4)
         -12.104797 ≤ n ≤ -3.404968 或  n ≥ 14.159319    (5)

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    The final solution set is :
         -12.104797 ≤ n ≤ -3.404968 或  n ≥ 14.159319

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