Chapter 9: Problem 26
Find parametric equations of the conic sections. $$\frac{x^{2}}{4}+y^{2}=1$$
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Chapter 9: Problem 26
Find parametric equations of the conic sections. $$\frac{x^{2}}{4}+y^{2}=1$$
These are the key concepts you need to understand to accurately answer the question.
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Graph the conic section and find an equation. All points such that the difference of the distances to the points (0,4) and (0,-2) equals 4
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Compare the graphs of \(\left\\{\begin{array}{l}x=\cos 2 t \\ y=\sin t\end{array} \text { and }\left\\{\begin{array}{l}x=\cos t \\ y=\sin 2 t\end{array}\text { . Use }\right.\right.\) the identities \(\cos 2 t=\cos ^{2} t-\sin ^{2} t\) and \(\sin 2 t=2 \cos t \sin t\) to find \(x-y\) equations for each graph.
In exercises identify all points at which the curve has (a) a horizontal tangent and (b) a vertical tangent. $$\left\\{\begin{array}{l} x=2 \cos 2 t+\sin t \\ y=2 \sin 2 t+\cos t \end{array}\right.$$
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