A) \[A\]and B are two matrices not necessarily of same order
B) A and B are square matrices of same order
C) Number of columns of A= Number of rows of B
D) None of these
Correct Answer: B
Solution :
\[A+B\]is defined Þ A and B are of same order Also AB is defined Þ Number of columns in A = Number of rows in B Obviously, both simultaneously mean that the matrices A and B are square matrices of same order.
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