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 A and B are symmetric matrices of order n, then ________.
A + B is skew symmetric
A + B is symmetric
A+ B is a diagonal matrix
A + B is a zero matrix
If matrix contain 13 elements. Write the possible order of the matrix
2 × 3
13 × 2
1 × 13
6× 2
If A and B are matrices such that A + B and AB are defined, then.
It is not necessary that A and B are of the same size.
A and B are square matrices of the same order
No. of columns in A = no. of rows in B
None of these
then the values of x, y, z, w are ________.
2, 2, 3, 4
2, 3, 1, 2
3, 3, 0, 1
Then 3 A - 4 B =
A square matrix A is singular if _______
| A | ≠ 0
| A | = 0
| A | = 1
| A | ≠1
If A = [aij]mxn is a square matrix if
m < n
m > n
m = n
A = [aij]1×n is a row matrix of order ...........?
n × 1
1 × n
1/n
(1 + 1/n)2
