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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 6.84 <20.84/n <7.56 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        6.84 <20.84 / n         (1)
        20.84 / n <7.56         (2)
        From the definition field of divisor
        x ≠ 0        (3 )

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    From inequality(1)：
         0 < n < 3.046784
    From inequality(2)：
         n < 0 或  n ＞ 2.756614
    From inequality(3)：
         n < 0 或  n ＞ 0

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    From inequalities (1) and (2)
         2.756614 < n < 3.046784     (4)
    From inequalities (3) and (4)
         2.756614 < n < 3.046784     (5)

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    The final solution set is :
         2.756614 < n < 3.046784

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