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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 20x^12-21x^11-120x^7+219x^6-101x^5+1 ≤0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        20 * x ^ 12 - 21 * x ^ 11 - 120 * x ^ 7 + 219 * x ^ 6 - 101 * x ^ 5 + 1 ≤0         (1)

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    From inequality(1)：
         0.590854 ≤ x ≤ 1.236519

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    The final solution set is :
         0.590854 ≤ x ≤ 1.236519

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