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函数是高中数学教学的主线内容，应用函数的性质和函数观点解题，体现了一种解题策略：即将静态的数学问题放到一个动态的过程中去考察，将局部的放置于整体的环境中来解决．一、基本性质１．函数图象的对称性（１）奇函数与偶函数．奇函数的图象关于坐标原点对称，对任意ｘ∈
The function is the main content of high school mathematics teaching. The nature of the applied function and the problem-solving problem of the function reflect a problem-solving strategy: the static mathematics problem is put into a dynamic process, and the locality is placed in the overall environment. To solve. First, the basic nature of 1. Symmetry of function images (1) Odd and even functions. The image of the odd function is symmetrical about the coordinate origin, for any x