Q62Multiple choice
If A is matrix of order m × n and B is a matrix such that AB′ and B′A are both defined, then order of matrix B is
- (A)m×m
- (B)n×n
- (C)n×m
- (D)m×n
If A is matrix of order m × n and B is a matrix such that AB′ and B′A are both defined, then order of matrix B is