Solve Section=B with all steps and do it correctly please. I have a te

1.	Solve Section=B with all steps and do it correctly please. I have a test and very less time. I promise to give thanks in return and also brainliest.See I'm giving more points.
Answer» Answer: Q.3 Consider the following identity A(adjA)=∣A∣I. Thus comparing it with the above equation GIVES us ∣A∣=10 Now ∣adjA∣=∣A∣ n−1 where n is the ORDER of the square matrix. Here 'n' is 3, therefore, ∣adjA∣=∣A∣ 3−1 =∣A∣ 2 =10 2 =100. Q.5 on the ATTACHMENT Q.4

Solve Section=B with all steps and do it correctly please. I have a test and very less time. I promise to give thanks in return and also brainliest.See I'm giving more points.

Answer»

Answer:

Q.3 Consider the following identity A(adjA)=∣A∣I. Thus comparing it with the above equation GIVES us ∣A∣=10

Now ∣adjA∣=∣A∣

n−1

where n is the ORDER of the square matrix.

Here 'n' is 3, therefore, ∣adjA∣=∣A∣

3−1

=∣A∣

=10

=100.

Q.5 on the ATTACHMENT

Q.4