Question

Which of the following statements is incorrect for a square matrix A. (IAI 70)
(A) IfA is a diagonal matrix, A-I will also be a diagonal matrix
(B) If Ais a symmetric matrix, A-' will also be a symmetric matrix
(C) IfA-'=A A is an idempotent matrix
(D) IfA-1=A = A is an involutary matrix
Ο Α
OB
Ос
OD​

Answer 1

Answer:

thanks for free points

Answer 2

Answer:

option c is incorrect thats why it's impossible