A square matrix A is singular if _______
| A | ≠ 0
| A | = 0
| A | = 1
| A | ≠1
Then 3 A - 4 B =
The number of all possible matrices of order 3 × 3 with each entry 0 or 1 is
27
18
81
512
A = [aij]1×n is a row matrix of order ...........?
n × 1
1 × n
1/n
(1 + 1/n)2
A column matrix has only ____________.
One element
One row with one or more columns
One column with one or more rows
One row and one column
A 3×4 matrix whose elements are
None of these
If A is ( aij ) m × n and B = ( bjk ) m × p, then order of AB is ___________.
m × n
m × p
p × m
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
