In the rectangular coordinate system, point (4,0) and (-4,0 ) both lie on circle c, what is the maximum possible value of the radius of c.
长方形和 circle 有什么关系么?
rectangular coordinate 就是直角坐标系的意思。
应该是求最小的半径吧,最大的半径不确定啊。
open to discuss
欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) | Powered by Discuz! 7.2 |