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

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

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    From inequality(1)：
         n < 0 或  1 < n < 3
    From inequality(2)：
         n < 0 或  n ＞ 0
    From inequality(3)：
         n < 0 或  n ＞ 0

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    From inequalities (1) and (2)
         n < 0 或  1 < n < 3     (4)
    From inequalities (3) and (4)
         n < 0 或  1 < n < 3     (5)

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    The final solution set is :
         n < 0 或  1 < n < 3

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