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近几年,中考试题和各类初中数学竞赛试题出现了不小有关最值方面的命题,而这类命题往往又是学生们的薄弱环节。为此,本文就初中数学内容,介绍几种求最值问题的方法,供同行参考。一、几何法平面几何里,有许多公理和定理,如:“两点之间,线段最短。”,“连结直线外一点与直线上各点的线段中,垂线段最短。”,
In recent years, the middle exam questions and various junior high school math contest questions have appeared propositions related to the most value, and these propositions are often the weak points of the students. For this reason, this article introduces several ways to find the best value problem for junior high school mathematics content for reference by peers. First, geometrical plane geometry, there are many axioms and theorems, such as: “between two points, the shortest line segment.”, “joining the point of the straight line and the point on the line, the shortest vertical line.”,