From 667b93902dc8bb0d23b46166e887545e4a330142 Mon Sep 17 00:00:00 2001 From: Cym10x Date: Wed, 31 Dec 2025 00:34:08 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B912=E9=A2=98?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 编写小组/试卷/1231线性代数考试卷.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/编写小组/试卷/1231线性代数考试卷.md b/编写小组/试卷/1231线性代数考试卷.md index 8998026..466c9f4 100644 --- a/编写小组/试卷/1231线性代数考试卷.md +++ b/编写小组/试卷/1231线性代数考试卷.md @@ -66,7 +66,7 @@ tags: 0 & 0 & 0 & \cdots & 0 & 0 & 0 & \cdots & 0 & 0 & 0 \end{bmatrix}_{n \times n}$$其中第一行有$m$个$0$.若$A^k=O$,则$k$的最小值为$\underline{\qquad\qquad\qquad\qquad}.$ -12. 设 $A, B$ 均为 $n$ 阶方阵，满足$\text{rank} \begin{bmatrix} A \\ B \end{bmatrix} = \text{rank}B,$ 且方程 $XA = B$ 有解。若 $\operatorname{rank} A = k$，则$\text{rank} \begin{bmatrix} A & O \\ B & E \end{bmatrix} =\underline{\hspace{3cm}}.$ +12. 设 $A, B$ 均为 $n$ 阶方阵，满足$\text{rank} \begin{bmatrix} A \\ B \end{bmatrix} = \text{rank}B,$ 且方程 $XA = B$ 有解。若 $\operatorname{rank} A = k$，则$\text{rank} \begin{bmatrix} B & O \\ A & E \end{bmatrix} =\underline{\hspace{3cm}}.$ ## 三、解答题，共五道，共64分