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what is differ btw focus and ficii?
plzzz explian with draw............
Dear Baba
Here you can see the major axis and minor axis of an ellipse.
There is not just one focus and directrix, but a pair of them . foci is the plural of focus. we call foci of ellipse but we cant say like foci of parabola as parabola has only one focus.
All the best.
AKASH GOYAL
AskiitiansExpert-IITD
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