-4 23 0-3 B = 4. 1 Compute each matrix sum or product if it is defined. If an expression is undefined, explain why. Let A = ,and D= 3 -6 1 -5 -3 -3 2 -2A, В - 2A, АС, CD Compute the matrix product -2A. Select the correct choice below and, if necessary, fill in the answer box within your choice.

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