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 A is a matrix of order 3 x 4, then each row of A has ______.
4 elements
3 elements
12 elements
None of these
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 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 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
A 3×4 matrix whose elements are
