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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (1-y)^2+y^2-2 >= 0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1 - y ) ^ 2 + y ^ 2 - 2 >= 0         (1)

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    From inequality(1)：
         y ≤ -0.366025 或  y ≥ 1.366025

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    The final solution set is :
         y ≤ -0.366025 或  y ≥ 1.366025

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