Practicing Success
Practicing Success
CUET Preparation Today
If A is a square matrix such that $A^2 - A+ I =O$, then the inverse of A is |
$I - A$ $A-I$ $A$ $A+I$ |
$I - A$ |
We have, $A^2-A+I=O$ $⇒A-A^2 =I⇒A (I-A)=I⇒ A^{-1}=I-A$ |
