85
Matrices of different order cannot be subtracted.
A
TRUE
B
FALSE
86
Matrix addition is associative as well as commutative.
A
TRUE
B
FALSE
87
Matrix multiplication is commutative.
A
TRUE
B
FALSE
88
A square matrix where every element is unity is called an identity matrix.
A
TRUE
B
FALSE
89
If $A$ and $B$ are two square matrices of the same order, then $A+B=B+A$.
A
TRUE
B
FALSE