Construct a `3 xx 2` matrix whose elements ar given by `a_(ij)=(1)/(2)(i-3j)`

Explanation

To construct a \(3 \times 2\) matrix whose elements are given by the formula \(a_{ij} = \frac{1}{2}(i - 3j)\), we will calculate each element of the matrix step by step.

### Step-by-Step Solution:

1. **Identify the matrix dimensions**: We need to create a matrix with 3 rows and 2 columns, denoted as \(A\).

\[
A = \begin{bmatrix}
...