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

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

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    From inequality(1)：
         -1.561553 < x < 2.561553
    From inequality(2)：
         x ≤ 0 或  x ≥ 1

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    From inequalities (1) and (2)
         -1.561553 < x ≤ 0 或  1 ≤ x < 2.561553    (3)

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    The final solution set is :
         -1.561553 < x ≤ 0 或  1 ≤ x < 2.561553

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