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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.833753 <(2.33+x)/(3.87+x) <1.199396 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        0.833753 < ( 2.33 + x ) / ( 3.87 + x )         (1)
         ( 2.33 + x ) / ( 3.87 + x ) <1.199396         (2)
        From the definition field of divisor
         3.87 + x ≠ 0        (3 )

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    From inequality(1)：
         x < -3.87 或  x ＞ √101807843/√3500000
    From inequality(2)：
         x < -√940836201/√7000000 或  x ＞ -3.87
    From inequality(3)：
         x < -387/100 或  x ＞ -387/100

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    From inequalities (1) and (2)
         x < -√940836201/√7000000 或  x ＞ √101807843/√3500000    (4)
    From inequalities (3) and (4)
         x < -√940836201/√7000000 或  x ＞ √101807843/√3500000    (5)

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    The final solution set is :
         x < -√940836201/√7000000 或  x ＞ √101807843/√3500000

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