Math Problem Statement
设 A, B 是 n 阶方阵,其中 n \geqslant 2,给定: |A| = 2, |B| = -3, |A + B| = 5, 求 ||A| B^{*} + |B| A^{*}|。
Solution
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Math Problem Analysis
Mathematical Concepts
Linear Algebra
Determinants
Adjugate Matrices
Formulas
Determinant of a matrix |A|
Adjugate matrix A*
Determinant property: |A| I_n = A ⋅ A*
Theorems
Properties of determinants
Properties of adjugate matrices
Suitable Grade Level
Undergraduate Mathematics
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