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           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (-2.47sinx-10)/(20√6+21.65+21.65cosx)     Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( -2.47 * sin x - 10 ) / ( 20 * √ 6 + 21.65 + 21.65 * cos x ) < tan 30         (1)
        From the definition field of divisor
         20 * √ 6 + 21.65 + 21.65 * cos x ≠ 0        (2 )

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    From inequality(1)：
        The solution set is empty, that is, within the range of real numbers, the inequality will never be established!
    From inequality(2)：
         x ∈ R （R为全体实数），即在实数范围内，不等式恒成立！

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    The final solution set is :
        The solution set is empty,that is, the inequality will never be estatlished within the real number range.

    *Note: Radian.

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