If A is any `mxxn` matrix such that AB and BA are both defined, then B is a matrix of order

If A is an mxxn matrix such that AB and BA are both defined, then B is (A) mxxn matrix (B) nxxn matrix (C) mxxn matrix (D) nxxm matrix

If A is any mxn matrix and B is a matrix such that AB and BA are both defined, then B is a matrix of order

If A is any mxxn such that A B and B A are both defined show that B is an nxxm matrix.

If A is any m xx n such that AB and BA are both defined show that B is an n xx m matrix.

If A is 3xx4 matrix and B is a matrix such that A'B and BA' are both defined, then B is of the type

If A is a 3xx4 matrix and B is a matrix such that A'B and BA' are both defined, then B is of the type

If A is matrix of order mxxn and B is a matrix such that AB' and B'A are both defined , then order of matrix B is :

If A is matrix of order mxxn and B is a matrix such that AB' and B'A are both defined , then order of matrix B is