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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 9/49*a^7-3/7*a^4+1/4*a >0.7+0.9*a^3+27/70*a^6+27/490*a^9 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        9 / 49 * a ^ 7 - 3 / 7 * a ^ 4 + 1 / 4 * a >0.7 + 0.9 * a ^ 3 + 27 / 70 * a ^ 6 + 27 / 490 * a ^ 9         (1)

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    From inequality(1)：
         a < -2.500386

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    The final solution set is :
         a < -2.500386

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