[理工] 96、98中正資工 數學
1.Suppose Q is a 4x3 matrix with orthonormal col. q1,q2,q3
(b) Describe the nullspace of (the same 4 by 3 matrix) and the nullspace of
(you can still answer this one even if you didn’t answer part (a)).
Describe also the nullspaces of Q^tQ and QQ^t
nullspace我知道 但其他三個?
2.
http://imgur.com/a/2fl5z
相異等價類為[0] [1] [2]
解答看不太懂 請問這是怎麼算出來的?
3.
http://imgur.com/4LtozrX
e選項
我的答案是{0,4} 不知對不對
以上
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