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The centre of the ellipse 9x^(2)+25y^(2)...

The centre of the ellipse `9x^(2)+25y^(2)-18x-100y-160=0` is

A

(1,2)

B

(2,1)

C

(-1,2)

D

(-2,1)

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The correct Answer is:
A
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AAKASH SERIES-ELLIPSE-EXERCISE-I
  1. If centre (1, 2), axes are parallel to co-ordinate axes, distance betw...

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  2. If vertices are (2, -2), (2, 4) and e = 1/3 then equation of the ellip...

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  3. The centre of the ellipse 9x^(2)+25y^(2)-18x-100y-160=0 is

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

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  5. The centre of the ellipse (x+y-3)^(2)/9+(x-y+1)^(2)/16=1 is

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  6. The Foci of the ellipse (x^(2))/(16)+(y^(2))/(25)-1 are

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  7. The length of the latusrectum 16x^(2)+25y^(2) = 400 is

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

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  9. If PSP' is a focal chord of the ellipse (x^(2))/(7)+(y^(2))/(9)=1 then...

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  10. P is a point on the ellipse (x^(2))/(36)+(y^(2))/(9)=1; S,S^(1) are ...

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  11. The distance between the focii of the ellipse x = 3 cos theta, y = 4 s...

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  12. The equation of the major axis of the ellipse (x-1)^(2)/(9)+(y-6)^(2...

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  13. The equation of one of the latusrectum of (x-3)^(2)/(5)+(y-5)^(2)/(9)...

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  14. The eccentricity of the ellipse (x^(2))/(16)+(y^(2))/(25) =1 is

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

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  16. The eccentricity of the ellipse 9x^(2)+25y^(2)-18x-100y+20=0 is

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  17. If a line (x)/(8)+(y)/(5)=1 meets the ellipse on x - axis and the lin...

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  18. If the length of the major axis is n times the minor axis of the ellip...

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  19. The distance between the foci of an ellipse is equal to half of its mi...

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  20. If the minor axis of an ellipse subtends an angle 60^(@) at each focu...

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