Hi I need help on my homework, please refer to the pictures below and there's also an example of how to solve it on the picture. Please write it on your paper and take a picture of it. Please make your writing clean and neat for me to understand clearly, thank you!

Question 4 (Homework) Find the inverse of each of the following matrices 1. A = A 4. A = -3 2. A = 1 0' ) 1 0 0 0 0 2 3 5. A= 3. A = 3 Example Solutions Apply elementary row operations to the double matrix 2 7 1 0 0 [ A I = 1 4 0 1 0 3 0 0 0 1 to get 1 0 0 53 2 11 0 1 0 1 1 -3 2 2 0 0 1 NL NI - -3 -3 11 Hence A= 1 , as is readily verified