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In matrix multiplication , no of rows in first matrix should be equal to no of rows in the second matrix, so in this case, matrix A has 3 rows and matrix B has 3 colomuns, so matrix multiplication is possible
AB=[ 6 x-7 -3x 4 -1 x6 ]
[ 1 x0 2 x7 7 x3 ]
=[ -42 -12 -6 ]
[. 0. 14. 21. ] answer
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