For the software you are using, determine the command(s) or procedures required to do each...

For the software you are using, determine the command(s) or procedures required to do each of the following:

(a) Adjoin a row or column to an existing matrix.

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(b) Construct the partitioned matrix

   

 

from existing matrices A and B, using appropriate size zero matrices.

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(c) Extract a submatrix from an existing matrix.