设A,B均为n阶反对称矩阵 (Ⅰ)证明对任何n维列向量a恒有aTAa=0; 发布时间:2018-04-01 00:42 │ 来源:www.tikuol.com 题型:问答题 问题: 设A,B均为n阶反对称矩阵 (Ⅰ)证明对任何n维列向量a恒有aTAa=0; (Ⅱ)证明对任何非零实数k,恒有A-kE是可逆矩阵; (Ⅲ)证明若AB-BA是可逆矩阵,n必是偶数.
题型:问答题 According to the author, a very few home remedies are ______.A.uselessB.harmfulC.pleasantD.effective 查看答案