The arc length \(s\) of a curve defined by a function \(y = f(x)\) from \(x = a\) to \(x = b\) is given by the formula:
\[ s = \int_{a}^{b} \sqrt{1 + \left(\frac{dy}{dx}\right)^2} \, dx \]
In this case, the function is \(y = x \sin(x)\), and we are finding the arc
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