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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality −1excos(x)−1exsin(x) >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -1 * e x * cos ( x ) - 1 * e x * sin ( x ) >0         (1)

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    From inequality(1)：
         x < -13351769/1000000 或  -159534/15625 < x < -√6245609/√125000 或  -√53974399/√3500000 < x < -0.785398 或  2.356194 < x < 5.497787 或  8.63938 < x < 11.780972 或  x ＞ 14.922565

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    The final solution set is :
         x < -13351769/1000000 或  -159534/15625 < x < -√6245609/√125000 或  -√53974399/√3500000 < x < -0.785398 或  2.356194 < x < 5.497787 或  8.63938 < x < 11.780972 或  x ＞ 14.922565
    *Note: Radian.

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