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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 41^2×x^2-（x^2+1）(49x^2+256) ≤0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        41 ^ 2 × x ^ 2 - ( x ^ 2 + 1 ) * ( 49 * x ^ 2 + 256 ) ≤0         (1)

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    From inequality(1)：
         x ≤ -5.281509 或  -0.432777 ≤ x ≤ 0.432777 或  x ≥ 5.281509

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    The final solution set is :
         x ≤ -5.281509 或  -0.432777 ≤ x ≤ 0.432777 或  x ≥ 5.281509

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