Question
Mathematics Question on Adjoint and Inverse of a Matrix
If A is an invertible matrix, such that A2 - A + I = 0, then the inverse of A is :
A
A-2
B
I - A, where I is an identify matrix of order 2
C
0
D
A
Answer
I - A, where I is an identify matrix of order 2
Explanation
Solution
The correct option is (B) :I - A, where I is an identify matrix of order 2.