\"\"

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The equation is \"\".

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\"\"

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Compare the equation with \"\".

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Where \"\", \"\".

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Substitute \"\" in \"\".

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\"\"

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\"\".

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Here \"\", so the conic is ellipse.

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Directrix is parallel to the polar axis at a distance \"\" above the pole.

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\"\"

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The conic is ellipse.

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Directrix is parallel to the polar axis at a distance \"\" above the pole.