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Differentiate the following : (ii) (co...

Differentiate the following :
(ii) `(cos theta)/(theta+sin theta)`

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To differentiate the function \( y = \frac{\cos \theta}{\theta + \sin \theta} \), we will use the quotient rule. The quotient rule states that if you have a function in the form \( \frac{u}{v} \), then the derivative is given by: \[ \frac{dy}{d\theta} = \frac{v \frac{du}{d\theta} - u \frac{dv}{d\theta}}{v^2} \] where \( u = \cos \theta \) and \( v = \theta + \sin \theta \). ...
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