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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -2089.863+769.2792n+n^2/3×(682.613+19.119n)×(2047.839+38.238n)/(1365.226+38.238n)-0.4×n^2×(231.616+4.766n)×(694.848+9.531n)/(463.232+9.531n) ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -2089.863 + 769.2792 * n + n ^ 2 / 3 × ( 682.613 + 19.119 * n ) × ( 2047.839 + 38.238 * n ) / ( 1365.226 + 38.238 * n ) - 0.4 × n ^ 2 × ( 231.616 + 4.766 * n ) × ( 694.848 + 9.531 * n ) / ( 463.232 + 9.531 * n ) ≥0         (1)
        From the definition field of divisor
         1365.226 + 38.238 * x ≠ 0        (2 )
        From the definition field of divisor
         463.232 + 9.531 * x ≠ 0        (3 )

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    From inequality(1)：
         -40.803734 ≤ n ≤ -6.317915 或  n ≥ 1.815241
    From inequality(2)：
         n < -35.703384 或  n ＞ -35.703384
    From inequality(3)：
         n < -48.602665 或  n ＞ -48.602665

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    From inequalities (1) and (2)
         -40.803734 ≤ n < -35.703384 或  -35.703384 < n ≤ -6.317915 或  n ≥ 1.815241    (4)
    From inequalities (3) and (4)
         -40.803734 ≤ n < -35.703384 或  -35.703384 < n ≤ -6.317915 或  n ≥ 1.815241    (5)

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    The final solution set is :
         -40.803734 ≤ n < -35.703384 或  -35.703384 < n ≤ -6.317915 或  n ≥ 1.815241

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