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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality x ≥1，x＋1／x＋1／（x2＋1） .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x ≥1 , x + 1 / x + 1 / ( x * 2 + 1 )         (1)
        From the definition field of divisor
        x ≠ 0        (2 )
        From the definition field of divisor
         x * 2 + 1 ≠ 0        (3 )

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    From inequality(1)：
         x ≥ 1
    From inequality(2)：
         x < 0 或  x ＞ 0
    From inequality(3)：
         x < -1/2 或  x ＞ -1/2

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    From inequalities (1) and (2)
         x ≥ 1    (4)
    From inequalities (3) and (4)
         x ≥ 1    (5)

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    The final solution set is :
         x ≥ 1

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