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三角函数在高中数学体系中占有重要的地位,作为函数的一种,由于其特殊的性质从函数中单独分离出来成为了一个新的知识点.三角函数的特点是种类较多,各类性质和解题技巧比较突出,对解题者在对知识点的概念理解、解题技巧的积累和计算能力都有一定程度的考察.从出题类型进行分类,对三角函数的考察主要集中在对基本概念的考察、对计算的考察以及对三角函数与其他知识点综合考察等方式.一、对三角函数基本概念、基本性质的考察
Trigonometric function occupies an important position in high school mathematics system, and as a kind of function, it becomes a new knowledge point because of its special nature separated from the function alone.Characteristic of trigonometric function is more kinds, The problem-solving skills are more conspicuous, and the problem-solving people have a certain degree of understanding of the concept of knowledge points, the accumulation of problem-solving skills and computing power.Classification from the question type, the investigation of trigonometric functions mainly focus on the basic The concept of investigation, the calculation of the investigation and the trigonometric functions and other knowledge points comprehensive inspection methods, etc. First, the basic concept of trigonometric functions, the basic nature of the investigation