Overview: 2 questions will be solved this time.Among them
           ☆2 inequalities

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

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

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    The final solution set is :
         x < -0.618034 或  x ＞ 1.618034
[ 2/2Inequality]
    Assignment:Find the solution set of inequality x >= 1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x >= 1         (1)

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    From inequality(1)：
         x ≥ 1

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    The final solution set is :
         x ≥ 1

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