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本文通过寻找两道椭圆问题的内在联系,运用合情推理,得到圆锥曲线的焦点弦的一般结论,并得到由圆锥曲线的焦点(准线)寻找相应准线(焦点)位置的一种方法.
This paper finds the general conclusions of the conic curve focus string by finding the intrinsic link between the two elliptical problems, and obtains the method of finding the position of the corresponding guideline (focal point) from the focus of the conic curve (principal line).