A = [2 -3 1 2], B = [4 2 5], C = -3 -1 8], and D = [1 -4 8 -7 2 0] State the size of each matrix. Calculate each of the following if it's well-defined, or explain why it's undefined 4A + 5D; 2B - 3C^T AD; DA. A^2. B^2