Question

If A is a matrix of order m x n and B is a matrix such that AB’ and B'A are both defined, then the order of matrix B is ____________.

विकल्प

• m x m

• n x n

• n x m

• m x n

Answer 1

If A is a matrix of order m x n and B is a matrix such that AB’ and B'A are both defined, then the order of matrix B is m x n.