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

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

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    From inequality(1)：
         3.940733 < x < 7.067981 或  10.210202 < x < 13.351768 或  16.493361 < x < 19.634954 或  22.776547 < x < 25.918139

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    The final solution set is :
         3.940733 < x < 7.067981 或  10.210202 < x < 13.351768 或  16.493361 < x < 19.634954 或  22.776547 < x < 25.918139
    *Note: Radian.

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