Question

3.
If A is an identity matrix of order 3, then its
inverse (A-1)
(a)
is equal to null matrix
(b)
is equal to A
(c)
is equal to 3A
(d)
does not exist​

Answer 1

$\huge\bf{Answer:-}$

Yes

Step-by-step explanation:

If A is an identity matrix of order 3, then its inverse (A-1) = does not exist

Answer 2

★ The inverse of a identity matrix exist since it is a non singular Matrix it's determinant value is finite and equal to 1.

★The inverse of identity matrix of any order is the identity matrix itself of the same order.

★ Option B is correct.