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近几年,数学高考和数学竞赛的命题出现了对三次问题的考查,除了突出考察对新知识——导数的运用之外,也凸显了三次方程韦达定理在三次问题中的广泛应用.本文列举数例以分析和介绍三元韦达定理的应用.
In recent years, the propositions of the mathematics college entrance examination and mathematics competition have examined the three problems. In addition to highlighting the use of new knowledge-derivatives, it has also highlighted the wide application of the third-order equations of Weida theorem in three problems. List several examples to analyze and introduce the application of the three-dimensional Weida theorem.