[理工] 線代 97台大
根據矩陣版維度定理
A:m x n
rank(A) + nullity(A) = n
。。。。。。。。。。。。。。
T
Q:A:8x7 ，rank(A) = 3 。求nullity (A ) = ?
為什麼anSwer 是
T T
rank(A )+nullity(A ) = 8<------為啥不是7?
T
=> rank (A) + nullity(A ) =8
T
=>nullity(A ) = 8 - rank(A) =8-3 =5
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10/12 19:10, , 1F
10/12 19:10, 1F
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10/12 19:17, 2F
※ 編輯: larrywhy 來自: 140.134.117.206 (10/12 19:18)
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10/12 19:18, , 3F
10/12 19:18, 3F
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10/12 19:20, , 4F
10/12 19:20, 4F
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10/12 19:20, , 5F
10/12 19:20, 5F
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10/12 19:21, , 6F
10/12 19:21, 6F
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10/12 19:40, , 7F
10/12 19:40, 7F
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10/12 20:15, , 8F
10/12 20:15, 8F
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10/12 20:39, , 9F
10/12 20:39, 9F
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10/12 22:57, , 10F
10/12 22:57, 10F
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10/12 23:12, , 11F
10/12 23:12, 11F
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10/12 23:21, , 12F
10/12 23:21, 12F
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09/11 14:32, , 13F
09/11 14:32, 13F