Find `(dy)/(dx)` , when `x=acostheta` and `y=bsintheta`

Explanation

To find \(\frac{dy}{dx}\) when \(x = a \cos \theta\) and \(y = b \sin \theta\), we will follow these steps:

### Step 1: Differentiate \(x\) with respect to \(\theta\)
Given:
\[ x = a \cos \theta \]
Differentiating \(x\) with respect to \(\theta\):
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