MCQ
If $A = \left[ {\begin{array}{*{20}{c}}1&2&3\\5&0&7\\6&2&5\end{array}} \right]$and $B = \left[ {\begin{array}{*{20}{c}}1&3&5\\0&0&2\end{array}} \right]$, then which of the following is defined
- A$AB$
- B$A + B$
- ✓$A'B'$
- D$B'A'$
✓
Answer
Correct option: C.
$A'B'$
c
(c) By inspection, $A'$is a matrix of order $3 \times 3$ and $B'$is a matrix of order $3 \times 2$. Therefore multiplication of these matrices is defined.
(c) By inspection, $A'$is a matrix of order $3 \times 3$ and $B'$is a matrix of order $3 \times 2$. Therefore multiplication of these matrices is defined.
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