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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，555In Reply To: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 Posted by:richardhuang at 2004-11-29 13:09:01 Followed by: Post your reply here: |
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