Using the matrices Compute the following 11 D12041E10 24 140

Using the matrices

Compute the following:

1-1 D=120-41.E=10 -2-4 140 224 301 344 12 23

Solution

trace(A-B)=trace(A)-trace(B)

so here tr(3E^T-D)=tr(3E^T)-tr(D)

now tr(E)=tr(E^T) as sum of diagonal don\'t change on transposing the matrices.

tr(3E^T-D)=tr(3E)-tr(D)=3*(-3+2+0)-(-1+0-4)=-3+5=2