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The distance between the foci of an elli...

The distance between the foci of an ellipse is equal to half of its minor axis then eccentricity is

A

`(1)/sqrt(2)`

B

`(1)/sqrt(5)`

C

`(2)/sqrt(3)`

D

`(1)/sqrt(3)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ELLIPSE-EXERCISE-I
  1. If a line (x)/(8)+(y)/(5)=1 meets the ellipse on x - axis and the lin...

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

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

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

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  5. The eccentricity of an ellipse i s sqrt(3)/(2) its length of latus r...

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  6. If e(1) and e(2) are the eccentricites of (x^(2))/(a^(2))+(y^(2))/(b...

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  7. The equation of the tangent to the ellipse 9x^(2)+16y^(2)=144 at the ...

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  8. If x -y+ k = 0 is a tan gen t to the ellip se 9x^(2)+16y^(2)=144 then ...

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  9. The values that m can take so that the straight line y=4x+m touches th...

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  10. The equation of tangent to the ellipse 2x^(2)+3y^(2)=6 which make an a...

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  11. The equations of the tangents to the ellipse 4x^(2)+3y^(2)=5 which are...

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  12. The point of contact 8x-9y+5 = 0 with the ellipse 4x^(2)+9y^(2)=1 is

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  13. The number of tangents to (x^(2))/(9)+(y^(2))/(4)=1 through (3,2) is

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  14. The sum of the slopes of the tangents to the ellipse (x^(2))/(9)+(y^(2...

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  15. The locus of the point of intersection of the perpendicular tangents t...

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  16. Angle between the tangents drawn from the point (5,4) to the ellipse ...

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  17. The tangents drawn from the point P to the ellipse 5x^(2) + 4y^(2) =20...

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  18. The equation to the auxiliary circle of (x^(2))/(7)+(y^(2))/(5)=1 is

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  19. The tangent at any point P on the ellipse meets the tangents at the ve...

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  20. The equation of the normal to the ellipse x^(2)+3y^(2)=144 at the posi...

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