91
If matrix $A B=0$, then $A=0$ or $B=0$ or both $A$ and $B$ are null matrices.
A
TRUE
B
FALSE
92
Transpose of a column matrix is a column matrix.
A
TRUE
B
FALSE
93
If $A$ and $B$ are two square matrices of the same order, then $A B=B A$.
A
TRUE
B
FALSE
94
If each of the three matrices of the same order are symmetric, then their sum is a symmetric matrix.
A
TRUE
B
FALSE
95
If $A$ and $B$ are any two matrices of the same order, then $(A B)^{\prime}=A^{\prime} B^{\prime}$.
A
TRUE
B
FALSE