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प्रश्न
The distance between directrix and focus of a parabola y2 = 4ax is:
पर्याय
a
2a
4a
3a
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उत्तर
2a
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संबंधित प्रश्न
Find the co-ordinates of the focus, vertex, equation of the directrix, axis and the length of latus rectum of the parabola
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