Then 3 A - 4 B =
, then A2 is equal to
Unit matrix
Null matrix
A
-A
If A is a squre matrix, then A - A' is _____________.
Skew symmetric matrix
A matrix is _______.
A collection of real numbers
A collection of real or complex numbers
An array of real numbers
An array of real or complex numbers
If A is ( aij ) m × n and B = ( bjk ) m × p, then order of AB is ___________.
m × n
m × p
p × m
If matrix contain 13 elements. Write the possible order of the matrix
2 × 3
13 × 2
1 × 13
6× 2
A square matrix A is singular if _______
| A | ≠ 0
| A | = 0
| A | = 1
| A | ≠1
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
The number of all possible matrices of order 3 × 3 with each entry 0 or 1 is
27
18
81
512
