Differentiate `sqrt(tan^(-1)(x/2))` with respect to `x` :

Explanation

To differentiate the function \( y = \sqrt{\tan^{-1}\left(\frac{x}{2}\right)} \) with respect to \( x \), we will follow these steps:

### Step 1: Rewrite the function
We start with the function:
\[ y = \sqrt{\tan^{-1}\left(\frac{x}{2}\right)} \]
This can be rewritten as:
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