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Mathematics
If I3 is the identity matrix of order 3, then I-13 is
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Q. If $I_3$ is the identity matrix of order 3, then $I^{-1}_3$ is
Determinants
A
0
0%
B
$3 I_3$
25%
C
$I_3$
42%
D
Does not exist
33%
Solution:
As $I_3 I_3 = I_3 $, thesefore $I^{-1}_3 = I_3$