Suppose that A, B, C, D, and E are matrices with the following sizes: A B C D E (2 x 1) (2 x 6) (6x3) (3x6) (1×2) Determine whether the matrix expression AE is defined. Enter the size of the resulting matrix (enter 'NA' in each box if undefined). AE is a ( X

Consider the following matrices: 2 -2 1 -1 4- [²3] A = B = c-632 = -6 -3 -2| Compute the following expressions or explain why they cannot be computed. (a) A + B (b) A + C (c) AB (d) BA (e) CB+CA (f) BC + AC

Let A and B be the following matrices. Perform the following operations: -8A = A2B = 5A - 2B = 00 3 -2 9 4 461 +61 A = -9 B = -3 -5 -2 -9 3