Differentiate each of the following from first principle: `2/x`

Explanation

To differentiate the function \( f(x) = \frac{2}{x} \) using the first principle, we will follow these steps:

### Step 1: Write down the definition of the derivative using the first principle.
The derivative of a function \( f(x) \) using the first principle is given by:
\[ f'(x) = \lim_{h \to 0} \frac{f(x+h) - f(x)}{h} \]

...