1. Matrix A and matrix B are defined as below. [1 2 3] A = 4...

  

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1. Matrix A and matrix B are defined as below. [1 2 3] A = 4 5 6 L7 8 91 B = y (5%) (a) Can we perform the matrix multiplication for B*A? If we can, what's the result? (5%) (b) Can we perform the matrix multiplication for A*B? If we can, what's the result? 1. Matrix A and matrix B are defined as below. [1 2 3] A = 4 5 6 L7 8 91 B = y (5%) (a) Can we perform the matrix multiplication for B*A? If we can, what's the result? (5%) (b) Can we perform the matrix multiplication for A*B? If we can, what's the result?