Question

consider the following
C = [3 -9 24] and D = 1/12 [2 3 6]
[0 12 -24] [2 1 -6]
[1 -3 4] [1 0 -3]
find CD
[_ _ _]
[_ _ _]
[_ _ _]
find DC
[_ _ _]
[_ _ _]
[_ _ _]