1. If 0 0 0 0 0 0 0 0 1 0 0 1 1 1 E = what is the result of multiplying an appropriately sized matrix A on the left by E, i.e., EA? 2. If 0 0 0. 0 1 0 0 1 E = a 0. 0. 1 what is the result of multiplying an appropriately sized matrix A on the left by E, i.e., EA? Exercise 2.6 How do the answers to Problem 2.5 change if the multiplication by the elementary matrix is done from the right, i.e, AE.