Eight points are equally spaced on a circle. If 4 of the 8 points are to be chosen at random, what is the probability that a quadrilateral having the 4 points chosen as vertices will be a square? A B C D E 显示答案 登录后才可以添加做题笔记哦,还没有账号? 马上注册 KMF 解析...
The solutions of a, e and ω are elaborated in Appendix A. Longitude of the ascending node can be set arbitrarily according to the real situations and we set it to 0 in this paper. In addition, the eight micro-satellites are equally spaced in a single orbit plane. After these orbital ...