The order of the matrix is
1x 3
2 x 3
3 x 3
3 x 1
1
2
3
4
To define the product of two matrices AB, the condition is
A and B are of same order
No. of columns in A is equal to no. of rows in B
No. of rows in B is equal to no. of rows in A
None of these
The 2 x 2 matrix is called
row matrix
column matrix
identity matrix
null matrix
(AT)T =
A
AT
0
I
(5 x 2 y)
(5 x + 2 y)
(5+x 2+y)
A 2 x 2 null matrix is
If A is of order 3 x 2 and AB is of order 3 x 3 then B is of order
2 x 2
3 x 2
-A
