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求平面动点轨迹方程的基本指导思想,就是充分利用题设中的几何条件,通过“解析化”将其转化为代数方程,以达到用代数方法研究几何问题的目的。
The basic guiding principle of finding the trajectory equation of plane moving point is to make full use of the geometric conditions in the problem and transform it into algebraic equation through “analytic ” so as to achieve the purpose of studying the geometric problem by algebraic method.