123 2 4- 6 the four subspaces. You do not have to repeat your calculations from Problem 1 and 2. Explain which part of your answer for Problem 1 and 2 is used to solve this problem. Problem 3. Consider the same matrix A = [ J. We are going to nd the relation between (a) Using the bases for the subspaces and dot products, show that Col A and Nul AT are orthogonal to each other. (If not orthogonal, you should check your answers for Problem 2.) (b) Using the bases for the subspaces and dot products, show that Row A and Nul A are orthogonal to each other. (c) Draw a graph of Col A, Nul AT, the basis for Col A, and the basis for Nul AT. Label each subspace and basis. ((1) Draw a graph of Row A, Nul A, the basis for Row A, and the basis for Nul A. Label each subspace and basis