Let such that for some positive integer . If is a nonzero matrix, show that is not diagonalizable.
I proved that if for some positive integer , then the only eigenvalue of is . I think it can be proven by contradiction. But I'm still struggle.
Let such that for some positive integer . If is a nonzero matrix, show that is not diagonalizable.
I proved that if for some positive integer , then the only eigenvalue of is . I think it can be proven by contradiction. But I'm still struggle.