39. Which vectors form the basis of null( A )?

(A) [-3,2,1, -1,1]
(B) [-1,-2,1,0, 0]
(C) [1,-3,0, -4,1]
(D) [2,-1,0, 1, -1]
(E) None

答案：登入後查看
統計： A(0), B(1), C(0), D(0), E(1) #2993428