Differentiate `sin^(-1)(x/(sqrt(x^2+a^2)))` with respect to `x` :

Explanation

To differentiate \( \sin^{-1} \left( \frac{x}{\sqrt{x^2 + a^2}} \right) \) with respect to \( x \), follow these steps:

### Step-by-Step Solution:

1. **Let \( u = \sin^{-1} \left( \frac{x}{\sqrt{x^2 + a^2}} \right) \).**

2. **Substitute \( x = a \tan \theta \):**
\[
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