Let A be a matrix of order 3 × 4. If R1 denotes the first row of A and C2 denotes its second column,
Question:
Let $A$ be a matrix of order $3 \times 4$. If $R_{1}$ denotes the first row of $A$ and $C_{2}$ denotes its second column, then determine the orders of matrices $R_{1}$ and $C_{2}$
Solution:
The order of $R_{1}$ is $1 \times 4$ and the order of $C_{2}$ is $3 \times 1$.