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求三角函数的最值 ,在知识上 ,除涉及三角函数的所有知识外 ,还用到了二次函数、不等式等其他重要的知识点 ;在解题的方法上 ,具有较强的综合性 .因此 ,求三角函数的最值能综合考查学生分析问题、解决问题的能力 ,所以它也就成为各级数学竞赛中的一个热点内容 .一、基础知识求
To find the maximum value of a trigonometric function, in addition to all knowledge involving trigonometric functions, other important knowledge points such as quadratic functions and inequalities are also used in the knowledge; in the method of solving problems, there is a strong comprehensiveness. , Finding the most value of the trigonometric function can comprehensively examine the student’s ability to analyze problems and solve problems, so it also becomes a hot topic in mathematics competitions at all levels. I. Fundamental knowledge