Re: [理工] 106交大線代離散
※ 引述《xcv9685 (xcv9685)》之銘言：
想請問一下第8題答案是什麼
Let u,v,w be vectors in R^n. Suppose A is the sum of three matrices:
A=uv^T+vw^T+wu^T. If x1u+x2v+x3w=0 has a nonzero solution(x1,x2,x3),
what is the maximum possible rank(A)? and why?
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02/13 20:10,
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02/13 20:17,
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02/13 20:18,
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02/13 20:18,
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不好意思~
請問r(A)最大為2是怎麼從這邊的 [u v w] 和 [v w u]^T 看出來的?
想了很久還是想不通 有勞各位幫忙解惑了
謝謝
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02/14 19:19, , 1F
02/14 19:19, 1F
請問H大
這跟r(A)=r((A^T)A)的關係是什麼? 我看不出來
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02/14 19:29, , 2F
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02/14 19:31, , 3F
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02/14 19:33, , 5F
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02/14 19:34, , 6F
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02/14 19:39, , 7F
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總算看懂了! 謝謝a大!
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02/14 19:42, , 8F
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02/14 19:46, , 9F
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02/14 20:31, , 12F
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02/14 20:34, , 14F
02/14 20:34, 14F
謝謝各位的幫忙! 感恩~
※ 編輯: jcyz (106.105.42.163), 02/14/2017 20:49:42
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