From 4e4e32d57ddc8e9dd4e8a54b5e2e219f02d7b88e Mon Sep 17 00:00:00 2001
From: Elwood <3286545699@qq.com>
Date: Mon, 29 Dec 2025 21:22:39 +0800
Subject: [PATCH] vault backup: 2025-12-29 21:22:39

---
 ...ƒè¯•å�·.md => 1231线性代数考试å�·ï¼ˆè§£æž�版）.md} | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
 rename 编写�组/试�/{1231线性代数考试�.md => 1231线性代数考试�（解�版）.md} (99%)

diff --git a/编写�组/试�/1231线性代数考试�.md b/编写�组/试�/1231线性代数考试�（解�版）.md
similarity index 99%
rename from 编写�组/试�/1231线性代数考试�.md
rename to 编写�组/试�/1231线性代数考试�（解�版）.md
index e2eb5ce..66b54ff 100644
--- a/编写�组/试�/1231线性代数考试�.md
+++ b/编写�组/试�/1231线性代数考试�（解�版）.md
@@ -124,7 +124,7 @@ $\quad T^{-1} = \begin{pmatrix} 1 & 0 \\ -5 & 1 \end{pmatrix}$是�标��矩
 
 8. 设2阶矩阵A=$\begin{bmatrix}3&-1\\-9&3\end{bmatrix}$，n为正整数，则$A^n=\underline{\quad\quad}$。
 
-
+---
 
 解�：
 先计算$A^2$：
@@ -143,7 +143,7 @@ $$= 6\begin{bmatrix}3&-1\\-9&3\end{bmatrix} = 6A$$
  
 将A代入得：
 $$A^n = 6^{n-1}\begin{bmatrix}3&-1\\-9&3\end{bmatrix} $$
- 
+ ---
 
 
 9. 若��组