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

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

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    From inequality(1)：
         -17.220755 < x < -14.066194 或  -10.904122 < x < -7.725252 或  -4.493409 < x < 0 或  4.493409 < x < 7.725252 或  10.904122 < x < 14.066194

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    The final solution set is :
         -17.220755 < x < -14.066194 或  -10.904122 < x < -7.725252 或  -4.493409 < x < 0 或  4.493409 < x < 7.725252 或  10.904122 < x < 14.066194
    *Note: Radian.

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