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If A is a identity matrix of order 3, th...

If A is a identity matrix of order 3, then its inverse `(A^(-1))`

A

is qual to null matrix

B

is equal to A

C

is equal to 3A

D

does not exist

Text Solution

Verified by Experts

The correct Answer is:
B
Given, A is an identity matrix.
`therefore A = I`
We know, `I^(-1) = I`
`therefore A^(-1) = A`
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