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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -6 <= -3x^2/2 <-4 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -6 <= -3 * x ^ 2 / 2         (1)
         -3 * x ^ 2 / 2 < -4         (2)

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    From inequality(1)：
         -2 ≤ x ≤ 2
    From inequality(2)：
         x < -√8/√3 或  x ＞ √8/√3

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    From inequalities (1) and (2)
         -2 ≤ x < -√8/√3 或  √8/√3 < x ≤ 2     (3)

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    The final solution set is :
         -2 ≤ x < -√8/√3 或  √8/√3 < x ≤ 2

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