Question

Let A be a square matrix of real numbers such that A^4 = A. Which of the
following cannot be the determinant of A?
(A) -1 (B)0 (C) 1 (D) None of the above.​

Answer 1

Answer:

C. 1

Step-by-step explanation:

it is because when the A is 1 then the values of A^4=A.