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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 800sinxcosx-25*9.8 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        800 * sin x * cos x - 25 * 9.8 >0         (1)

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    From inequality(1)：
         x < -8.183591 或  -5.953576 < x < -5.041999 或  -2.811983 < x < -1.900406 或  0.32961 < x < 1.241187 或  3.471202 < x < 4.382779 或  x ＞ 6.612795

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    The final solution set is :
         x < -8.183591 或  -5.953576 < x < -5.041999 或  -2.811983 < x < -1.900406 或  0.32961 < x < 1.241187 或  3.471202 < x < 4.382779 或  x ＞ 6.612795
    *Note: Radian.

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