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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0 <= k2 <2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        0 <= k * 2         (1)
         k * 2 <2         (2)

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    From inequality(1)：
         k ≥ 0
    From inequality(2)：
         k < 1

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    From inequalities (1) and (2)
         0 ≤ k < 1    (3)

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    The final solution set is :
         0 ≤ k < 1

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