Find the differential coefficient of `a.x^(2) sin x` with respect to 'x' .

Explanation

To find the differential coefficient of the function \( y = a \cdot x^2 \cdot \sin x \) with respect to \( x \), we will use the product rule of differentiation.

### Step-by-Step Solution:

1. **Identify the function**:
\[ y = a \cdot x^2 \cdot \sin x \]
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