let A be a 4*4 matrix with the characteristic equation(1-λ^4).determine if A is diagonalizable.

问题描述:

let A be a 4*4 matrix with the characteristic equation(1-λ^4).determine if A is diagonalizable.

1-x^4=0,解为x=1 -1 i(虚数单位),-i,四个不同的特征值,故可对角化.解为x=1 -1 i(虚数单位) 这个地方没看懂~稍微简单点说~四个特征值,一个是1,一个是-1,一个是i,一个是-i