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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （2√a）/（4-a） ≥3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 2 * √ a ) / ( 4 - a ) ≥3         (1)
        From the definition field of √
        x ≥ 0        (2 )
        From the definition field of divisor
         4 - x ≠ 0        (3 )

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    From inequality(1)：
         2.870497 ≤ a ≤ 4
    From inequality(2)：
         a ≥ 0
    From inequality(3)：
         a < 4 或  a ＞ 4

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    From inequalities (1) and (2)
         2.870497 ≤ a ≤ 4    (4)
    From inequalities (3) and (4)
         2.870497 ≤ a < 4    (5)

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    The final solution set is :
         2.870497 ≤ a < 4

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