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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 1/2((5-k)-sqrt((k-3)^2+20) ) <3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1 / 2 * ( ( 5 - k ) - sqrt ( ( k - 3 ) ^ 2 + 20 ) ) <3         (1)
        From the definition field of √
         ( x - 3 ) ^ 2 + 20 ≥ 0        (2 )

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

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