For a matrix A, B and identity matrix I, if a matrix AB=I=BA then:

1.	For a matrix A, B and identity matrix I, if a matrix AB=I=BA then:
A.	B is inverse of A
B.	A is inverse of B
C.	A<sup>-1</sup> = B, B<sup>-1</sup> = A
D.	All of the mentioned
Answer» E.

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