摘要
本文通过构造适当的概率模型，给出了某些重要排列组合恒等式的证明，并证明了若干与自然数有关的恒等式．
In thes paper,we prove some inportant identical relation of permutation and combination and some identical relation about n by means of constructing Properly medels.
出处
《淮北煤师院学报（自然科学版）》
1996年第4期83-85,共3页
Journal of Huaibei Teachers College(Natural Sciences Edition)
