If A and B are matrices of same order, then A + B =
A x B
A - B
A / B
B + A
If A+ x = 0, then x =
A
-A
x
I
(AT)T =
AT
0
1/3
3
-3
-4
The order of the matrix is
1x 3
2 x 3
3 x 3
3 x 1
The 2 x 2 matrix is called
row matrix
column matrix
identity matrix
null matrix
Multiplication identify for 2 x 2 matrix is
(AB)T=
AT BT
BTAT
ATBT
AT-BT