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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 1/4*x^4-1/2*x^2 <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1 / 4 * x ^ 4 - 1 / 2 * x ^ 2 <0         (1)

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    From inequality(1)：
         -√2 < x < 0 或  0 < x < √2

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    The final solution set is :
         -√2 < x < 0 或  0 < x < √2

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