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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.342 ≤0.6667×sin(3.14×A)+A×(1-sin（6.28×A）÷6.28×A）×0.875+4 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.342 ≤0.6667 × sin ( 3.14 × A ) + A × ( 1 - sin ( 6.28 × A ) ÷ 6.28 × A ) × 0.875 + 4         (1)

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    From inequality(1)：
         -4.449781 ≤ A ≤ -3.987733 或  -3.608789 ≤ A ≤ -2.86318 或  -2.640126 ≤ A ≤ 9.208334 或  9.314046 ≤ A ≤ 10.181342 或  10.329819 ≤ A ≤ 11.142792

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    The final solution set is :
         -4.449781 ≤ A ≤ -3.987733 或  -3.608789 ≤ A ≤ -2.86318 或  -2.640126 ≤ A ≤ 9.208334 或  9.314046 ≤ A ≤ 10.181342 或  10.329819 ≤ A ≤ 11.142792
    *Note: Radian.

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