問題詳情

6.Let

and nullity(  A  ) denote the dimension of N(  A  ). Suppose nullity(  A  ) = 2. Which of thefollowing statements are true?
(A) rank(AT) = 3
(B) nullity(AT) = 4
(C) Let A = [a1, a2, a3], where a1, a2, a3 are column vectors of A.Then a1 and a2 are linearly dependent.
(D) The linear equation Ax = 0 has infinitely many solutions.
(E) The linear equation ATy = d cannot have a unique solution for any

.

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增