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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 6x/(x*x+1) >2x-1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        6 * x / ( x * x + 1 ) >2 * x - 1         (1)
        From the definition field of divisor
         x * x + 1 ≠ 0        (2 )

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    From inequality(1)：
         x < -1 或  -0.280776 < x < 1.780776
    From inequality(2)：
         x ∈ R （R为全体实数），即在实数范围内，不等式恒成立！

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    From inequalities (1) and (2)
         x < -1 或  -0.280776 < x < 1.780776     (3)

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    The final solution set is :
         x < -1 或  -0.280776 < x < 1.780776

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