Let I3 be the Identity matrix of order 3 then (I3)-1 is equal to?

1.	Let I3 be the Identity matrix of order 3 then (I3)-1 is equal to?
A.	0
B.	3I<sub>3</sub>
C.	I<sub>3</sub>
D.	None of the mentioned.
Answer» D. None of the mentioned.

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