Question 135

If $$y = x \sin x$$, then at $$x = \frac{\pi}{2}, \frac{dy}{dx} =$$

Solution
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$$y = x \sin x$$, then at $$x = \frac{\pi}{2

$$y = x \sin x$$, then at $$x = \frac{180}{2}

\frac{dsin90}{dx}

1

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