The matrix is:

[-1 0 -3] [k1] [0]

[1 0 3] [k2] = [0]

[1 0 3] [k3] [0]

Now I understand that if you let k1=3 and k3=-1, then k2=0:

[3 ]

[0 ]

[-1]

Another possible solution, according to the back of the book is

[0]

[1]

[0]

Is it correct for me to think that 1 is an aribtrary number and that it really could be anything? Thanks,

Kim