Question

If A =(1 -1 2,
3 0 -2
1 0 3).Verify that AdjA =|A|I.also find A^-1

Answer 1

Answer:

|A| is always not equal to adjA because adjA can be stay in matrix form but |A| is changing a number

Step-by-step explanation:

[032

-11 -1 8

0 1 3] is adA

|A|=11 so A^-1 is adjA÷|A|