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How can we transform these parametric equations to Cartesian form?

$x=\frac{1}{2} \cos\theta, \quad y=2\sin\theta \quad\text{ for}\;\;0 \leq \theta \leq \pi$

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    Your parametric equaiton for $x$ differs in your original title from that in the body of the question. Which one do you mean?2012-12-02
  • 0
    I've fixed it, thanks.2012-12-02

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