题目1.设3行5列的矩阵A_(3times5)的行向量线性无关,则R(A^T)=____.A.2 B.3 C.4 D.5A. 2B. 3C. 4D. 51.设3行5列的矩阵$A_{3\times5}$的行向量线性无关,则$R(A^{T})=$____. A.2 B.3 C.4 D.5A. 2B. 3C. 4D. 5题目解答答案B. 3