关于向量组线性相关的，下面三行是为什么？？
a.A\u7684\u5217\u5411\u91cf\u7ec4\u7ebf\u6027\u76f8\u5173\uff0cB\u7684\u884c\u5411\u91cf\u7ec4\u7ebf\u6027\u76f8\u5173\u8bbeA: m*s
B: s*n
\u7531 AB=0 \u77e5 r(A)+r(B) <= s
\u7531 A,B \u975e\u96f6\u77e5 r(A)>=1, r(B)>=1
\u6545 r(A) <s, r(B)<s
\u6240\u4ee5 A\u7684\u5217\u5411\u91cf\u7ec4\u7ebf\u6027\u76f8\u5173, B\u7684\u884c\u5411\u91cf\u7ec4\u7ebf\u6027\u76f8\u5173
\u8d44\u6599\u4e66\u4e0a\u548c\u6559\u6750\u4e0a\u7684\u90fd\u662f\u5bf9\u7684\uff0c\u4e24\u8005\u5e76\u4e0d\u77db\u76fe\uff0c\u6ce8\u610f\u533a\u5206\u4e0b\u5217\u4e24\u79cd\u8bf4\u6cd5\uff1a
\uff081\uff09\u5411\u91cf\u7ec4\u5411\u91cf\u603b\u6570\u4e0d\u53d8\u4f46\u90fd\u589e\u52a0\uff08\u6216\u90fd\u53bb\u6389\uff09\u76f8\u540c\u4e2a\u6570\u7684\u5206\u91cf\uff1b
\uff082\uff09\u5411\u91cf\u7ec4\u6bcf\u4e2a\u5411\u91cf\u7684\u5206\u91cf\u4e2a\u6570\uff08\u5373\u7ef4\u6570\uff09\u4e0d\u53d8\u4f46\u5411\u91cf\u7ec4\u5411\u91cf\u4e2a\u6570\u589e\u52a0\uff08\u6216\u51cf\u5c11\uff09\uff1b
\u5411\u91cf\u7ec4\u7ebf\u5f62\u76f8\u5173\u53ef\u7406\u89e3\u4e3a\u5b58\u5728\u4e00\u7ec4\u7cfb\u6570\uff0c
\u5bf9\u5411\u91cf\u7ec4\u7684\u6bcf\u4e00\u7ef4\uff0c\u8be5\u7cfb\u6570\u5bf9\u5e94\u7684\u7ebf\u6027\u65b9\u7a0b\u90fd\u6210\u7acb\uff0c
\u7ebf\u6027\u65e0\u5173\u5219\u53ef\u7406\u89e3\u4e3a\u4e0d\u5b58\u5728\u6ee1\u8db3\u4e0a\u8ff0\u6761\u4ef6\u7684\u7cfb\u6570\u3002
\u4e00n\u7ef4\u5411\u91cf\u7ec4\u7ebf\u6027\u76f8\u5173\uff0c\u8bf4\u660e\u5b58\u5728\u4e00\u7ec4\u7cfb\u6570\u4f7fn\u7ef4\u5bf9\u5e94\u7684n\u4e2a\u65b9\u7a0b\u90fd\u6210\u7acb\uff0c
\u53bb\u6389\u76f8\u540c\u4e2a\u6570\u7684\u5206\u91cf\uff0c\u7ef4\u6570\u964d\u4f4e\uff0c\u65b9\u7a0b\u4e2a\u6570\u51cf\u5c11\uff0c
\u540c\u4e00\u7ec4\u7cfb\u6570\u5f53\u7136\u8fd8\u662f\u80fd\u4f7f\u6bcf\u4e2a\u65b9\u7a0b\u6210\u7acb\u3002
\u4e00n\u7ef4\u5411\u91cf\u7ec4\u7ebf\u6027\u65e0\u5173\uff0c\u8bf4\u660e\u4e0d\u5b58\u5728\u4e00\u7ec4\u7cfb\u6570\u4f7fn\u7ef4\u5bf9\u5e94\u7684n\u4e2a\u65b9\u7a0b\u90fd\u6210\u7acb\uff0c
\u589e\u52a0\u76f8\u540c\u4e2a\u6570\u7684\u5206\u91cf\uff0c\u7ef4\u6570\u589e\u52a0\uff0c\u65b9\u7a0b\u4e2a\u6570\u53d8\u591a\uff0c
\u6ee1\u8db3\u66f4\u5f3a\u6761\u4ef6\u7684\u7cfb\u6570\u5f53\u7136\u5c31\u66f4\u4e0d\u5b58\u5728\u4e86\u3002
\u589e\u52a0\u5411\u91cf\u7ec4\u5411\u91cf\u7684\u4e2a\u6570\uff0c\u76f8\u5f53\u4e8e\u589e\u52a0\u4e0a\u8ff0\u7ebf\u6027\u65b9\u7a0b\u7684\u5143\u6570\uff0c
\u5982\u679c\u8f83\u5c11\u5143\u6570\u90fd\u80fd\u627e\u5230\u6ee1\u8db3\u6761\u4ef6\u7684\u7cfb\u6570\uff0c\u53d6\u540c\u4e00\u7ec4\u7cfb\u6570\uff0c
\u5bf9\u589e\u52a0\u7684\u5143\u6570\u4ee4\u7cfb\u6570\u4e3a0\uff0c\u6613\u77e5\u5982\u6b64\u6269\u5c55\u7684\u4e00\u7ec4\u7cfb\u6570\u4e5f\u5fc5\u5b9a\u6ee1\u8db3\u6761\u4ef6\u3002
\u4e0a\u8ff0\u7ed3\u8bba\u7684\u9006\u5426\u547d\u9898\u5373\u4e3a\uff0c
\u51cf\u5c11\u5411\u91cf\u7ec4\u5411\u91cf\u7684\u4e2a\u6570\uff0c\u539f\u6765\u65e0\u5173\u7684\u5411\u91cf\u7ec4\u4ecd\u5e94\u65e0\u5173\u3002
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