The number of all possible matrices of order 3 × 3 with each entry 0 or 1 is
27
18
81
512
If A is ( aij ) m × n and B = ( bjk ) m × p, then order of AB is ___________.
m × n
m × p
p × m
If A is a squre matrix, then A - A' is _____________.
Unit matrix
Null matrix
A
skew symmetric matrix
A = [aij]1×n is a row matrix of order ...........?
n × 1
1 × n
1/n
(1 + 1/n)2
Then 3 A - 4 B =
If A is 3 x 4 matrix and B is a matrix such that A'B and B A' are both defined.Then B is of the type.
4 x 3
3 x 4
3 x 3
4 x 4
If the matrix AB is zero, then _________.
A = 0 or B = 0
A = 0 and B = 0
It is not necessary that either A = 0 or B should be 0
All the above statements are wrong
If matrix contain 13 elements. Write the possible order of the matrix
2 × 3
13 × 2
1 × 13
6× 2
