問題詳情

19. Consider the linear equation Ax = b with A ∈

. Which of the following statements are true?

(A) If rank

= m, then there exists at least one solution.

(B) Ifrank

= n, then there exists exactly one solution.

(C) Ifrank

= n, then the column vectors of A are linearly independent.

(D) Ifn ＞ m, then there exists at least one solution.

(E) Ifm ＞n, then there exists at most one solution.

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