Question - Matrix Multiplication Rules
Solution:
For matrix multiplication to be possible, the number of columns in the first matrix must equal the number of rows in the second matrix.Matrix A is a 3x3 matrix, which means it has 3 rows and 3 columns. Matrix B is a 4x3 matrix, which means it has 4 rows and 3 columns.To multiply AB, the number of columns in A must equal the number of rows in B. Since A has 3 columns and B has 4 rows, AB cannot be calculated.To multiply BA, the number of columns in B must equal the number of rows in A. Since B has 3 columns and A has 3 rows, BA can be calculated.So, the correct answer is:B. only BA
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