using matlab:

5 7 2 5 1 A 4 3 7 1 8 1 4 8 6 6 7 3 5 7 9 (a) Define the above matrix as MATLAB variable A 18 4 6|ase elesedby dashed (b) Use a single command to extract a sub-matrix 7 1 8.as enclosed by the dashed 8 6 6 line 5 7 2 5 11 1 4 8 6 6 (c) Use a single command to extracr a sub-matrix 2 3. as enclosed by the 5 4 5 7 9 dashed line 5 7 2 5 1 A-4 3 7 1 8 7 3 5 7 9 (d) Find the row and column numbers of the elements in A that are small than 4. (e) Find the row and column numbers of the elements in A that are greater than 4 and less than 7. (f) Swap the third row and fifth row