`A B C D` is parallelogram. If the coordinates of `A , B , C` are `(-2,-1),(3,0)` and `(1,-2)` respectively, find the coordinates of `Ddot`

Explanation

To find the coordinates of point D in the parallelogram ABCD, we can use the property that the diagonals of a parallelogram bisect each other. This means that the midpoint of diagonal AC will be the same as the midpoint of diagonal BD.

### Step-by-step Solution:

1. **Identify the Coordinates of Points A, B, and C:**
- A = (-2, -1)
- B = (3, 0)
- C = (1, -2)
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