問題詳情

【題組】

18. Consider the linear equation Ax = b, where A = [a1, a2, a3, a4 ] ∈

and a1, a2, a3, a4 arecolumn vectors of A. Suppose a1 + a2 + a3 + a4 = b. Which of the following statements are true?
(A) The linear equation has exactly one solution.
(B) The linear equation has infinitely many solutions.
(C) No conclusion can be drawn about the number of solutions to the linear equation.
(D) The vectors a1, a2,a3, a4 are linearly dependent.
(E) rank([A,b]) = rank

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