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

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

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    From inequality(1)：
         x ≤ 0 或  x ≥ 1
    From inequality(2)：
         x < 0 或  x ＞ 0

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    From inequalities (1) and (2)
         x < 0 或  x ≥ 1    (3)

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    The final solution set is :
         x < 0 或  x ≥ 1

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