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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality xe（cosx-sinx） >1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x * e ( cos x - sin x ) >1         (1)

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    From inequality(1)：
         x ＞ 3.027175

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    The final solution set is :
         x ＞ 3.027175
    *Note: Radian.

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