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

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

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    From inequality(1)：
         -1 < x < 0.750787

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    The final solution set is :
         -1 < x < 0.750787
[ 2/2Inequality]
    Assignment:Find the solution set of inequality e^x-x     Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         e ^ x - x < e ^ 1 - 1         (1)

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    From inequality(1)：
         -1.493754 < x < 1

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    The final solution set is :
         -1.493754 < x < 1

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