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Questions  >>  CBSE XI  >>  Math  >>  Conic Sections
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Q)

If the focus of a parabola is $(0,-3)$ and its directrix is $y=3$,then its equation is

$\begin{array}{1 1}x^2=-12y\\x^2=12y\\y^2=-12x\\y^2=12x\end{array} $

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