a) mx2(1,5) = mx1(5,1);

b) v1 = mx1(1,:);

c) mx2(4,:) = v1;

d) mx2(:,4) = mx1(3,:);

 

mx2 =

1 0 0 10 20
0 1 0 11 0
0 0 1 12 0
0 1 2 13 4
0 0 0 14 1
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