Q41
The matrix P is the inverse of a matrix Q. If I denotes the identity matrix, which one of the following options is correct?
The matrix P is the inverse of a matrix Q. If denotes the identity matrix, which one of the following options is correct?
A.
PQ = but QP ≠
B.
QP = but PQ ≠
C.
PQ = and QP =
AnswerD.
PQ - QP =
Answer: Option C
Solution
Answer: Option C
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