设 A、B分别为n×m,n×l矩阵,C为以 A、B为子块的n×(m+l)矩阵,即C= (A, B),则().《》() A.秩 (C)=秩 (A) B.秩 (C)=秩 (B) C.秩 (C)与秩 (A)或秩 (C)与秩 (B)不一定相等
A.若秩 B.=秩 C.=r,则秩 D.=r正确答案C
设 A、B分别为n×m,n×l矩阵,C为以 A、B为子块的n×(m+l)矩阵,即C= (A, B),则().《》() A.秩 (C)=秩 (A) B.秩 (C)=秩 (B) C.秩 (C)与秩 (A)或秩 (C)与秩 (B)不一定相等
A.若秩 B.=秩 C.=r,则秩 D.=r正确答案C