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众所周知,数学是整个高中学习的关键,而在高中三年数学的学习中,函数是数学的主线,它既是重点也是难点,是整个高中数学的核心的内容,也是学习数学的基础.经历过高考和数学竞赛的同学都知道,在高考的考题中,有关函数性质的试题相对于其他而言占了很大的比例,这是由于函数的对称性是函数的一个最基本的性质,在有关的数学问题中,函数的对称性被广泛的运用,利用这种对称关系往往能更好地、更简便快捷地去找出问题的关键,使问题得到解决.并且在解决问题同
As we all know, mathematics is the key to high school learning, and in the high school mathematics learning three years, the function is the main line of mathematics, it is both important and difficult, is the core of high school mathematics content, but also to learn mathematics. And mathematics contest students know that in the entrance exam questions, questions on the nature of the function relative to other accounts for a large proportion, this is because the function of symmetry is a function of the most basic nature of the relevant In mathematical problems, the symmetry of functions is widely used, and it is often better and easier to use the symmetrical relations to find out the key issues and solve the problems.