Perform the indicated block multiplication of matrices A and B. If matrices A and B are each partitioned into four submatrices A11 A12 A = [A21 A22 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 A12 B11 B12 A21 A22] B21 B22 AB = = A = and B = A11B11 + A12B21 A21B11 + A22B21 1 1 0 0 2000 0 0 2 1 A11B12 + A12B22 A21B12 + A22B22. B = B11 B12 B21 B22 2 -1 0 1 10 0 01 0 0 3 Enter an exact number

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