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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （x²-1）/(2x²+1)-1/2 <1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( x ^ 2 - 1 ) / ( 2 * x ^ 2 + 1 ) - 1 / 2 <1         (1)
        From the definition field of divisor
         2 * x ^ 2 + 1 ≠ 0        (2 )

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    From inequality(1)：
         x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
    From inequality(2)：
         x ∈ R （R为全体实数），即在实数范围内，不等式恒成立！

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    From inequalities (1) and (2)
         x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!    (3)

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    The final solution set is :
         x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!

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