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The foci of the ellipse 9x^(2)+ 5(y^(2)-...

The foci of the ellipse `9x^(2)+ 5(y^(2)-10y +25)=45` are

A

(-2,5),(2,5)

B

(0,3),(0,7)

C

(0,1),(0,9)

D

`(pm4,5)`

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The correct Answer is:
B
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AAKASH SERIES-ELLIPSE-PRACTICE EXERCISE
  1. The equations of the directrices of the ellipse 9x^(2) + 25y^(2) = 22...

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  2. The vertices of the ellipse 9x^(2) + 25y^(2) - 90x - 150y + 225 = 0 ar...

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  3. The foci of the ellipse 9x^(2)+ 5(y^(2)-10y +25)=45 are

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  4. The equation of the major axis of 25x^(2) + 16y^(2)-100x - 96y - 156 =...

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  5. The equations of the latus recta of the ellipse 9x^(2) + 25y^(2) - 36x...

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  6. The equations of the directrices of 16x^(2) + 25y^(2) - 96x - 100y - 1...

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  7. The asending order of the eccentricities l(1),l(2),l(3) of the conics...

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  8. Let P be a point on an ellipse whose parameter is (pi)/(3) . The sum a...

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  9. Match the eccentricities of the ellipses The correct Matching is

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  10. Assertion (A) : the sum and product of the slopes of the tangents to...

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  11. If the latusrectum of an ellipse is half of its major axis then e is

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  12. If the latus rectum of an ellipse is half of its minor axis then e =

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  13. The distance between the directrix is equal to 8 times the distance be...

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  14. If the m inor axis of an ellipse form s an equilateral triangle with o...

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  15. Let S, S^(') are the focii and BB^(') be the minor axis of an ellipse....

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  16. The length of the latus rectum of an ellipse is 4. The focus and its c...

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  17. Let P be a point on an ellipse whose parameter is (pi)/(3) . The sum a...

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  18. The latus rectum LL^(') subtends a right angle at the centre of the el...

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  19. If the latus rectum of a hyperola forms an equilateral triangle with t...

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  20. Area of the quadrilateral formed by the extremities of major axis and ...

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