Differentiate each function by applying the basic rules of differentiation
`-(1)/(x^(2))`

Explanation

To differentiate the function \( y = -\frac{1}{x^2} \), we can follow these steps:

### Step-by-Step Solution:

1. **Rewrite the Function**:
We start with the function:
\[
y = -\frac{1}{x^2}
...