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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 50 ≤（10sinx+10）*10*cosx/2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        50 ≤ ( 10 * sin x + 10 ) * 10 * cos x / 2         (1)

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    From inequality(1)：
         x ≤ -17.853586 或  -12.566371 ≤ x ≤ -11.570401 或  -6.283185 ≤ x ≤ -5.287215 或  0 ≤ x ≤ 0.99597 或  6.283185 ≤ x ≤ 7.279155 或  x ≥ 12.566371

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    The final solution set is :
         x ≤ -17.853586 或  -12.566371 ≤ x ≤ -11.570401 或  -6.283185 ≤ x ≤ -5.287215 或  0 ≤ x ≤ 0.99597 或  6.283185 ≤ x ≤ 7.279155 或  x ≥ 12.566371
    *Note: Radian.

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