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圆的一般方程和圆的标准方程及圆的参数方程之间的等价如何保证,这是学生学习中易混易错的问题,本文结合实例对3类问题进行辨析,分析产生错误的原因,给出相应的避免出错的策略.
How to ensure the equivalence between the general equation of the circle and the standard equation of the circle and the parametric equation of the circle is a problem that is easy to mix and misunderstand in the students’ learning. This article analyzes the three types of problems with examples and analyzes the causes of the errors. Give corresponding strategies to avoid mistakes.