In: Math
A, B, C, D are all matricies
A = 2x3
1 2 −3
−1 4 5
,
B = 2x3
3 0 −1
1 2 1
, C = 2x2
2 5
1 2
,
D = 3x3
1 −1 1
2 −1 2
4 −3 4
Find each of the following or explain why it does not exist.
1) A + B,
2) 2A − 3B,
3) A + C,
4) A − C,
5) AC,
6) CA,
7) AD,
8) DA,
9) C
10) D−1
.
11) Solve the matrix equation CX = B