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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2sin(x+30） >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2 * sin ( x + 30 ) >0         (1)

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    From inequality(1)：
         x < -14.292037 或  -11.150444 < x < -8.008851 或  -4.867259 < x < -1.725666 或  1.415927 < x < 4.557519 或  7.699112 < x < 10.840704 或  x ＞ 13.982297

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    The final solution set is :
         x < -14.292037 或  -11.150444 < x < -8.008851 或  -4.867259 < x < -1.725666 或  1.415927 < x < 4.557519 或  7.699112 < x < 10.840704 或  x ＞ 13.982297
    *Note: Radian.

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