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Date: Sat, 24 Jan 2026 07:59:13 +0800
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 试卷库/线性代数期末真题/线代2014秋A.md | 1 -
 1 file changed, 1 deletion(-)

diff --git a/试卷库/线性代数期末真题/线代2014秋A.md b/试卷库/线性代数期末真题/线代2014秋A.md
index a7024d1..70f1cfa 100644
--- a/试卷库/线性代数期末真题/线代2014秋A.md
+++ b/试卷库/线性代数期末真题/线代2014秋A.md
@@ -168,7 +168,6 @@ $$
 \left[\left(\frac{1}{2} A\right)^{\mathrm{*}}\right]^{-1}BA^{-1} = 2AB + 4E,
 $$
 
-且$A^{*}\alpha = \alpha$，其中$\alpha = (1,1,-1)^{\mathrm{T}}$，$A^{*}$为$A$的伴随矩阵，求二次型$x^{\mathrm{T}}Bx$的表达式。
 
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