浅析解三角形最值问题旧题“新变化”
Analysis on the “New Change” of the Old Problem of Triangle Maximum Value Problem

解三角形是高中数学中非常重要的内容之一，也是学生在学习过程中感觉难度比较大的知识点。解三角形题目一直是高考的高频考点，其主要考察学生对于数形结合以及逻辑推理能力，其中对于未知变量个数多于已知方程的这类题目，就会涉及到解三角形最值问题。以往解三角形最值问题主要解法是给定边或者角的取值范围，以此来构造相对应的函数方程，从而来求函数值域问题。
Solving triangles is one of the very important contents in high school mathematics, and it is also a knowledge point that students feel difficult in the learning process. Solving triangles has always been a high frequency test point in the college entrance examination, which mainly tests students’ ability to combine numbers and shapes and logical reasoning. For such problems where the number of unknown variables is more than that of known equations, it will involve solving the triangle maximum value problem. In the past, the main method to solve the triangle maximum value problem is to define the value range of the edge or angle, so as to construct the corresponding function equation, so as to solve the function range problem.