在学习平面解析几何的“直线与圆”部分时,为了实现快速、简洁、准确解答“直线与圆”有关的问题,必须注意以下几个方面.1充分利用平面几何知识,实现问题快速解答很多直线与圆的问题,利用解析方法可以使问题得到解答,但若充分利用平面几何知识,则往往能使解法更加简捷.例1已知A When learning the “linear and circular” part of the geometric plane, in order to quickly, succinctly, and accurately answer the questions relating to “line and circle”, we must pay attention to the following aspects. 1 Make full use of the knowledge of plane geometry to realize quick answers to many questions. For the problem of straight lines and circles, the problem can be solved by using analytical methods, but if you make full use of the knowledge of plane geometry, you can often make the solution easier. Example 1 Known A