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圆是最简单的几何图形之一,虽然高考对圆相关的问题考查难度不大,但题小方法灵活,对同学们的能力要求较高,笔者通过归纳总结如下几个解圆问题的相关策略,供同学们学习参考.1设好方程圆方程主要有2种形式:几何形式:(x-a)2+(y-b)2=r2;代数形式:x2+y2+Dx+Ey+F=0.参数a,b,r的值或参
The circle is one of the simplest geometric figures. Although the college entrance examination is not very difficult to examine the problems related to circles, the method is flexible and has higher requirements for the ability of the students. The author summarizes the following strategies for solving the round problem. For the students to learn reference. 1 set up a good equation circular equation There are two main forms: geometric form: (xa) 2+ (yb) 2 = r2; algebraic form: x2 + y2 + Dx + Ey + F = 0. Parameters a, b, r values or parameters