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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality k^2 >= 16k < >5k >-5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 4 inequalities：
         k ^ 2 >= 16 * k         (1)
         16 * k <         (2)
         >5 * k         (3)
        5 * k > -5         (4)

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    From inequality(1)：
         k ≤ 0 或  k ≥ 16
    From inequality(2)：
         k < 0
    From inequality(3)：
         k < 0
    From inequality(4)：
         k ＞ -1

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    From inequalities (1) and (2)
         k < 0    (5)
    From inequalities (3) and (5)
         k < 0    (6)
    From inequalities (4) and (6)
         -1 < k < 0     (7)

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    The final solution set is :
         -1 < k < 0

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