Question

If $\left[a_{ij}\right]$ is an element of matrix A then it lies in row of the matrix.

• A. $j^{th}$
• B. $i^{th}$
• C. $a^{th}$

Answer 1

The correct option is B $i^{th}$

$a_{ij}$ is a general element of the matrix. To specify its location we need to know its row number and column number. For $a_{ij}$ as per the convention those row and column numbers are given by i and j only i.e., i is the row number and j is the column number. So we can say that $a_{ij}$ is an element which lies in the $i^{th}$ row and $j^{th}$ column.