試卷名稱:101年 - 101 國立交通大學_碩士班考試入學試題_資訊聯招:線性代數與機率#113290
年份:101年
科目:研究所、轉學考(插大)◆線性代數與機率
2. Suppose
has a reduced row echelon form
Which of the following statements are true for x,b ∈ R3?
(A) Ax=[3,1,0]T has infinitely many solutions.
(B) Ax=[0,1,0]T has no solution.
(C) In this case, Column Space of A = Column Space of U.
(D) The matrix ATA is invertible.
(E) The projection of x=[2,1,11]T onto the Column Space of A is the vector [2,1,0]T .