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

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

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    From inequality(1)：
         k ＞ 0.451416
    From inequality(2)：
         k ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!

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    From inequalities (1) and (2)
         k ＞ 0.451416    (3)

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    The final solution set is :
         k ＞ 0.451416

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