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在近年各种竞赛中,涉及已知方程的根,求方程根的代数式的值.题型形式多样,思维深刻,开放性、灵活性大,涉及知识面广,技巧性
In recent years, various kinds of competitions involve the roots of known equations and find out the algebraic values of the root of the equation.The questions are diverse in form, profound in thinking, open and flexible, involving a wide range of knowledge and skill