Given that (P = begin{pmatrix} 4 & 9 end{pmatrix}) and (Q = begin{pmatrix} -1 & -2 \ 3 & 2 end{pmatrix}). Which of the following operations is possible?
-
A.
(QP) -
B.
(P^{2}) -
C.
(Q^{2}P) -
D.
(PQ)
Correct Answer: Option D
Explanation
A (1 times 2) matrix can be multiplied by (2 times 2) matrix to give a (1 times 2) matrix.