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           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.5*cosx*9.8*0.0061 <9.8*0.0061sinx .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.5 * cos x * 9.8 * 0.0061 <9.8 * 0.0061 * sin x         (1)

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    From inequality(1)：
         x < -15.244316 或  -12.102723 < x < -8.96113 或  -5.819538 < x < -2.677945 或  0.463648 < x < 3.60524 或  6.746833 < x < 9.888426 或  x ＞ 13.030018

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    The final solution set is :
         x < -15.244316 或  -12.102723 < x < -8.96113 或  -5.819538 < x < -2.677945 或  0.463648 < x < 3.60524 或  6.746833 < x < 9.888426 或  x ＞ 13.030018
    *Note: Radian.

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