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the foci of an ellipse are (0+-6) an...

the foci of an ellipse are `(0+-6)` and the equation of the directrces are `y=+- 9.` the equation of the ellipse is

A

`5x^(2)+9x^(2)=4`

B

`2x^(2)-6y=28`

C

`6x^(2)+3y^(2)=45`

D

`9x^(2)+5y^(2)=180`

Text Solution

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The correct Answer is:
D
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OBJECTIVE RD SHARMA-ELLIPSE-Exercise
  1. the eccentricity to the conic 4x^(2) +16y^(2)-24x-32y=1 is

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  2. A set of points is such that each point is three times as far away fro...

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  3. the foci of an ellipse are (0+-6) and the equation of the direc...

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  4. An ellipse has its centre at (1,-1) and semi major axis =8 and it pass...

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  5. Let L L ' be the latusrectum and S be a focus of the ellipse (x^...

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  6. the equation of the axes of the ellispe 3x^(2)+4y^(2)+6x-8y-5=0 ...

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  7. the equations to the directrices of the ellipse 4(x-3)^(2)+9(y+2)...

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  8. if the vertices of an ellipse are (-12,4) and (14,4) and eccentr...

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  9. if the coordinates of the vertices of an ellipse are (-6,1) and (...

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  10. if the tangent at the point (4 cos phi , (16)/(sqrt(11) )sin phi ...

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  11. A man running around a race course notes that the sum of the distances...

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  12. Find the angle between the pair of tangents from the point (1,2) to...

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  13. Find the foci of the ellipse 25(x+1)^2+9(y+2)^2=225.

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  14. if the coordinates of the centre , a foucs and adjacent vertex ...

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  15. If x/a+y/b=sqrt(2) touches the ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 , the...

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  16. A tangent having slope of -4/3 to the ellipse (x^2)/(18)+(y^2)/(32)...

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  17. The equation of the chord of the ellipse 2x^2+ 5y^2 =20 which is bisec...

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  18. AB is a diameter of x^2 + 9y^2=25. The eccentric angle of A is pi/6 ...

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  19. if one end of a diameter of the ellipse 4x^(2)+y^(2)=16 is (sqrt...

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  20. the equation of a diameter conjugate to a diameter y=(b)/(a)x of ...

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