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圆是解析几何的典型图形,也是一种独特的解题工具.对于某些解析几何问题,若能根据已知条件巧妙地构造辅助圆去求解,则可获得
Circles are typical graphs of analytical geometry and are also a unique tool for solving problems. For some analytic geometry problems, if you can subtly construct auxiliary circles based on known conditions to solve, you can obtain