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

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

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    From inequality(1)：
         x < -0.618034 或  1 < x < 1.618034
    From inequality(2)：
         x < -0.618034 或  -0.618034 < x < 1.618034 或  x ＞ 1.618034

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    From inequalities (1) and (2)
         x < -0.618034 或  1 < x < 1.618034     (3)

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    The final solution set is :
         x < -0.618034 或  1 < x < 1.618034

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