close
標題:
Matrices
發問:
A is a 2 x 2 square matrix with det A = 1. If A^2 + A + I = 0, show that A^(-1) = A^2. 更新: To : 自由自在 Thanks for the reply, by the way, is this true for all n x n matrix with det A not zero?
最佳解答:
http://i1090.photobucket.com/albums/i376/Nelson_Yu/int-58.jpg 圖片參考：http://i1090.photobucket.com/albums/i376/Nelson_Yu/int-58.jpg
其他解答:
Matrices
發問:
A is a 2 x 2 square matrix with det A = 1. If A^2 + A + I = 0, show that A^(-1) = A^2. 更新: To : 自由自在 Thanks for the reply, by the way, is this true for all n x n matrix with det A not zero?
最佳解答:
http://i1090.photobucket.com/albums/i376/Nelson_Yu/int-58.jpg 圖片參考：http://i1090.photobucket.com/albums/i376/Nelson_Yu/int-58.jpg
其他解答:
此文章來自奇摩知識+如有不便請留言告知
文章標籤
全站熱搜
留言列表
