三角函数中的最值问题是中学数学教学的重要内容之一 ,其研究方法多以代数方法为主 ,其形式灵活多样 ,其结构复杂多变 ,纵观近年来的高考试题 ,有关最值问题让广大中学生束手无策 ,为使中学生朋友们能在较短的时间内掌握大量详实的解题技巧和方法 ,下面就这类问题的解决方法归? The most important problem in the trigonometric function is one of the important contents of mathematics teaching in middle school. Its research methods are mostly based on algebraic methods, its forms are flexible and varied, and its structure is complex and changeable. Throughout recent years, high test questions, related to the most value problems Let the majority of middle school students helpless, in order to enable middle school students and friends to master a large number of detailed problem-solving skills and methods in the short time, the following solutions to this type of problem will be attributed.