【摘要】 本文给出了线性代数中替换定理、实对称矩阵的特征根都是实数及实对称矩阵可以对角化等结论的新证明.更多还原

【Abstract】 In the paper,the authors give some simple proofs of a number of theorem in linear algebra,two simple proofs of substitute theorem;A simple proof of the eigenvalues of a real symmetrir matrin are real unmbers;A simple proof of the real symmetric matrix is diagonalizable,be given.更多还原