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

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

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    From inequality(1)：
         -10.995574 < x < -7.853982 或  -4.712389 < x < -1.570796 或  -1 < x < 1.570796 或  4.712389 < x < 7.853982 或  10.995574 < x < 14.137167

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    The final solution set is :
         -10.995574 < x < -7.853982 或  -4.712389 < x < -1.570796 或  -1 < x < 1.570796 或  4.712389 < x < 7.853982 或  10.995574 < x < 14.137167
    *Note: Radian.

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