Kizspy | Question: 31
(Choose 1 answer)
(See picture)
A. (i)
B. (ii)
C. (iii)
D. (iv)
E. None of them
Let A be a square matrix that satisfies
A3 + 2A2-4A + I = 0.
Which of the following statements are true?
(i). A is invertible and A-1 = 41 – 2A – A2.
(ii).A is invertible and A-1 4-2A - A2.
(iii).A is invertible and A-1 = A2 + 2A - 41.
(iv).A is not invertible
