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圆锥曲线是历年来高考的必考内容之一,其综合问题考查内容灵活多变,题型多样,往往使学生面对试题茫然不知所措.然而当我们理清思路,抓住问题的本质,尝试着利用定义去解题,它却总会给我们带来惊喜.所以,深刻理解圆锥曲线的定义是我们解决圆锥曲线综合问题的基石.第一定义是圆锥曲线的本质,体现了其生成过程.
Conic curve over the years is one of the necessary examinations for the college entrance examination, exam questions comprehensive and flexible variety of questions, often make students confused at the beginning of the test at a loss.However, when we sort out our thinking, grasp the essence of the problem, Trying to use the definition to solve the problem, it always gives us a surprise, so a deep understanding of the definition of the conic is the cornerstone of our solution to the problem of conic synthesis.The first definition is the nature of the conic, which reflects its generation process .