Which one of the following equations is a correct identity for arbitra – McqOptions

MCQOPTIONS

1.	Which one of the following equations is a correct identity for arbitrary 3 3 real matrices P, Q and R?
A.	P(Q + R) = PQ + RP
B.	(P Q) = P 2PQ + Q
C.	det (P + Q) = detP + detQ
D.	(P + Q) = P + PQ + QP + Q
Answer» E.

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