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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3.816 <11*6.93/x <21.92 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        3.816 <11 * 6.93 / x         (1)
        11 * 6.93 / x <21.92         (2)
        From the definition field of divisor
        x ≠ 0        (3 )

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    From inequality(1)：
         0 < x < 19.976415
    From inequality(2)：
         x < 0 或  x ＞ 3.477646
    From inequality(3)：
         x < 0 或  x ＞ 0

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    From inequalities (1) and (2)
         3.477646 < x < 19.976415     (4)
    From inequalities (3) and (4)
         3.477646 < x < 19.976415     (5)

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    The final solution set is :
         3.477646 < x < 19.976415

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