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           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 383880000÷(14.3×500×500×500) ≤2×sin(3.14a)÷3+a{1-sin(2×3.14a)÷(2×3.14a)}×465×1÷500÷0.25 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        383880000 ÷ ( 14.3 × 500 × 500 × 500 ) ≤2 × sin ( 3.14 * a ) ÷ 3 + a * ( 1 - sin ( 2 × 3.14 * a ) ÷ ( 2 × 3.14 * a ) ) × 465 × 1 ÷ 500 ÷ 0.25         (1)

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    From inequality(1)：
         a ≥ 0.094331

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    The final solution set is :
         a ≥ 0.094331
    *Note: Radian.

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