在高考试题中,经常涉及求最值问题,正确选择和建立求最值途径非常关键,下面谈一下常见的求最值途径。一、借助几何意义求最值在求—些路程或线段最值时,往往借助垂线段最短,两点间线段最短,把问题转化求解。 In the high-examination questions, the question of seeking the most value is often involved. The correct choice and establishment of the means for seeking the most value are very critical. Let’s talk about the common ways of seeking the most value. First, the use of geometric meaning to find the best value in the search for some distance or line segment value, often with the shortest vertical line, the shortest line between the two points, the problem is converted to solve.