\

A=([1,1,0

])

\

([

2,0,1]),B=([1,-2

])

\ -1,2\

([

-2,4]),C=([1,2,3

])

\ 2,4,5\

([

3,5,6])\ D=([1,-3,2

])

\ -3,3,-1\

([

2,-1,0]),E=([2,1

])

\ 3,-1\

([

-4,2]),F=([1

])

\ 0\

([

4])

\ Where possible, evaluate

AB,BA,AC,CD,D^(T)B,CA,AE,AF

. Are any of the products symmetric, diagonal, unit or null?

4. A=(121001)D=132331210B=112224E=23412C=123245356F=104 Where possible, evaluate AB,BA,AC,CD,DTB,CA,AE,AF Are any of the products symmetric, diagonal, unit or null