Kizspy | Question: 31
(Choose 1 answer)
(See picture)
A. Only (i).
B. Both (i) and (ii).
C. Only (ii).
D. None of them.
Let A and B be square matrices of the same size. Which of the following
statements are true?
(i) If AB = -31 then A and B are both invertible.
(ii) If ATB = 31 then A and B are both invertible.
