Find `(dy)/(dx),` when `x=a(theta+sintheta)a n dy=a(1-costheta)`

Explanation

To find \(\frac{dy}{dx}\) given the equations \(x = a(\theta + \sin \theta)\) and \(y = a(1 - \cos \theta)\), we can follow these steps:

### Step 1: Differentiate \(x\) with respect to \(\theta\)

We start with the equation for \(x\):
\[ x = a(\theta + \sin \theta) \]
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