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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3sinx^2+sinx^3+sinx^4 >1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        3 * sin x ^ 2 + sin x ^ 3 + sin x ^ 4 >1         (1)

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    From inequality(1)：
         x < -6.929048 或  -5.742865 < x < -3.681913 或  -2.49573 < x < -0.645863 或  0.54032 < x < 2.601272 或  3.787455 < x < 5.637322 或  x ＞ 6.823505

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    The final solution set is :
         x < -6.929048 或  -5.742865 < x < -3.681913 或  -2.49573 < x < -0.645863 或  0.54032 < x < 2.601272 或  3.787455 < x < 5.637322 或  x ＞ 6.823505
    *Note: Radian.

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