Then 3 A - 4 B =
A = [aij]1×n is a row matrix of order ...........?
n × 1
1 × n
1/n
(1 + 1/n)2
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 A is a squre matrix, then A - A' is _____________.
Unit matrix
Null matrix
A
Skew symmetric matrix
A 3×4 matrix whose elements are
None of these
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
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
then the values of x, y, z, w are ________.
2, 2, 3, 4
2, 3, 1, 2
3, 3, 0, 1
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
