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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3*（n-2）-1/2*（n-2）*3-1/2*1*（n-3）-1/2*3*1小于等于3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        3 * ( n - 2 ) - 1 / 2 * ( n - 2 ) * 3 - 1 / 2 * 1 * ( n - 3 ) - 1 / 2 * 3 * 1 ≤3         (1)

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    From inequality(1)：
         n ≤ 6

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    The final solution set is :
         n ≤ 6

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