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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (10562500*R^2+680*R-115600)/(6500R*(R-340)) <= 1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 10562500 * R ^ 2 + 680 * R - 115600 ) / ( 6500 * R * ( R - 340 ) ) <= 1         (1)
        From the definition field of divisor
         6500 * x * ( x - 340 ) ≠ 0        (2 )

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    From inequality(1)：
         -0.252752 ≤ R ≤ 0 或  R ≥ 0.043328
    From inequality(2)：
         R < 0 或  R ＞ 0

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    From inequalities (1) and (2)
         -0.252752 ≤ R < 0 或  R ≥ 0.043328    (3)

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    The final solution set is :
         -0.252752 ≤ R < 0 或  R ≥ 0.043328

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