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The distance between the focii of the el...

The distance between the focii of the ellipse `x=3costheta, y=4sintheta` is

A

`2sqrt(7)`

B

`7sqrt(2)`

C

`sqrt(7)`

D

`3sqrt(7)`

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DIPTI PUBLICATION ( AP EAMET)-ELLIPSE-EXERCISE 1A
  1. The length of the latus rectum of the ellipse 9x^(2)+25y^(2)-18x-100y-...

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  2. If the latus rectum of the ellipse x^(2)tan^(2)alpha+y^(2)sec^(2)alpha...

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  3. The distance between the focii of the ellipse x=3costheta, y=4sintheta...

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  4. The eccentricity of the ellipse x^(2)/9+y^(2)/16=1 is

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  5. The eccentricity of the ellipse 5x^(2)+9y^(2)=1 is

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  6. The eccentricity of the ellipse 9x^(2)+4y^(2)=36 is

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  7. The eccentricity of the conic 36x^(2)+144y^(2)-36x-96y-119=0 is

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  8. The eccentricity of the ellipse 9x^(2)+5y^(2)-30y=0 is

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  9. The eccentricity of the ellipse x^(2)+4y^(2)+2x+16y+13=0 is

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  10. The eccentricity of the ellipse whose latus rectum is equal to half of...

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  11. If the length of the major axis of an ellipse is three times the leng...

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  12. The eccentricity of the ellipse whose major axis is double the minor a...

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  13. The latus rectum of an ellipse is 1/3 of the major axis. It's eccentri...

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  14. The major axis of an ellipse is three times the minor axis, then the e...

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  15. In an ellipse the distance between the foci is 6 and it's minor axis i...

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  16. S and T are the foci of an ellipse and B is one end of the minor axis....

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  17. An ellipse has OB as semiminor axis, F and F^' its focii and the angle...

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  18. The minor axis forms an equialteral triangle with vertex at the end of...

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  19. A circle is described with minor axis of an ellipse as a diameter. If ...

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  20. The circle on SS^' as diameter intersects the ellipse in real points t...

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