Math Problem Statement
刚才的图中的数学题,用中学考试答题的方式回答。用中文答题。
Solution
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Math Problem Analysis
Mathematical Concepts
Inequalities
Quadratic Functions
Formulas
Quadratic function formula f(k) = k^2 + k + 1
Theorems
Inequality involving quadratic functions
Suitable Grade Level
Grades 10-12
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