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含三元变量的最值问题是近年来全国各地高考的热点,也是学生数学学习的难点之一.这类问题涉及的变量多、方法活,经常与函数或导数相结合,可转化为函数最值问题.解决此类问题的通法主要是消元法,即分析题中信息,将三元问题化归为二元或一元问题.本文对两类三元最值问题进行探究分析,供读者品评.
The most significant problem with ternary variables is the hot spot of college entrance examination all over the country in recent years, which is also one of the difficult points for students to study in mathematics.The variables involved in this kind of problems are many, the methods are live, often combined with functions or derivatives, Value problem.To solve this problem, the general method is elimination method, that is, the analysis of information in the question, the ternary problem into two yuan or one yuan.This paper analyzes the two types of ternary value problem for readers Product evaluation.