Question

If A= 3 1 −1 2 , I = 1 0 0 1 and O = 0 0 0 0 , show that A( − 5A + 7I = 0. Hence find A *+.​

Answer 1

Step-by-step explanation:

If A= 3 1 −1 2 , I = 1 0 0 1 and O = 0 0 0 0 , show that A( − 5A + 7I = 0. Hence find A