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

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

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    From inequality(1)：
         a < -1 或  a ＞ -1

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    The final solution set is :
         a < -1 或  a ＞ -1

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