Perform the indicated block multiplication of matrices A and B. If matrices A and B are each partitioned into four submatrices A11 A12 A21 A22. and B= A = then you can block multiply A and B, provided the sizes of the submatrices are such that the matrix multiplications and additions are defined. [A11 B11 B12 AB= = A = A11 A12 A11B11 + A12B21 A11B12 + A12B22 A21B11 + A22B21 A21B12 + A22B22 J 0200 1 1 0 0 0021 B11 В12 B21 B22 4 B = 1 2 0 -1 1 0 1 0 0 003

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