If , then A2 is
If A and B are square matrices such that AB = I and BA = I, then B is
unit matrix
Null matrix
Multiplicative inverse matrix of A
-A
Which one of the following is true for any two square matrices A and B of same order?
(AB)T = ATBT
(ATB)T = ATBT
(AB)T = BA
(AB)T = BT AT
If , then B =
then the value of x is
1
2
4
If then the order of A is
2 × 1
2 × 2
1 × 2
3 × 2
If a matrix is of order 2 × 3, then the number of elements in the matrix is
5
6
3
If , then the values of x and y respectively are
2,0
0,2
0,-2
1,1
If A = [1 -2 3] and B = then A + B =
[0 0 0]
[-14]
not defined
If A is of order 3 × 4 and B is of order 4 × 3, then the order of BA is
3 × 3
4 × 4
4 × 3
3 × 4