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顶一下，我连case也整不出来

Posted by Jayida at 2004-11-29 13:01:46 on Problem 2129
In Reply To:这题的做法是怎样呢？很怪异的题目 Posted by:zsuyrl at 2004-11-29 00:12:14

Followed by:

做法不难,充分考虑到n的作用是怎么样子的就可以了,不妨借这个机会复习复习数学 (0) richardhuang 2004-11-29 13:09:01
- 可以解释一下case吗？非常感谢！！ (0) Jayida 2004-11-29 13:58:41
  - 数学学的不行，^_^ (0) Jayida 2004-11-29 13:59:05
  - 做法真的很简单，可是不会证~~~~>.<~~~~ (0) zsuyrl 2004-11-29 16:13:00
- 我已将问题转化为求一矩阵的秩，但是下一步就很难做了，不知道怎么证明结论，555 (0) zsuyrl 2004-11-29 16:11:47

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