Linear algebra question:
Solve the system of equations DCx = 0

C=[2, -1]
.....[ 1, 1]

.....[ 2, 1]
D=[ 0, 2]
.....[-1,3]

So, I have my product DC i got from matrix multiplication, it is:
.......[5,-1]
DC=[2, 2]
........[1, 4]

So now I'm not sure where to go.... They don't even say if its a vector, matrix, scalar....? Do I just divide both sides by DC and get x=0? Thanks for any help you give.

Question

Linear algebra question:
Solve the system of equations DCx = 0

C=[2, -1]
.....[ 1, 1]

.....[ 2, 1]
D=[ 0, 2]
.....[-1,3]

So, I have my product DC i got from matrix multiplication, it is:
.......[5,-1]
DC=[2, 2]
........[1, 4]

So now I'm not sure where to go.... They don't even say if its a vector, matrix, scalar....? Do I just divide both sides by DC and get x=0? Thanks for any help you give.

anonymous · Answer

You cant divide matrices with other matrices, you would have to look for another way to solve that. A hint: Identity Matrix. :)