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If P is a point on the ellipse 9x^(2)+36...

If P is a point on the ellipse `9x^(2)+36y^(2)=324` whose foci are S and `S^(')`. Then `PS+PS^(')=`

A

9

B

12

C

27

D

36

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DIPTI PUBLICATION ( AP EAMET)-ELLIPSE-EXERCISE 1A
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  2. If P is a point on the ellipse x^(2)/a^(2)+y^(2)/b^(2)=1 whose foci ar...

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  3. If P is a point on the ellipse 9x^(2)+36y^(2)=324 whose foci are S and...

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  4. If P(x,y), S(3,0), S^(')(-3,0) " and "16x^(2)+25y^(2)=400, " then "PS+...

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  5. If P is a point on the ellipse x^(2)/a^(2)+y^(2)/b^(2)=1 whose foci ar...

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  6. If pi+theta is the eccentric angle of a point on the ellipse 16x^(2)+2...

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  7. If S and S'' are the foci of the ellipse (x^(2))/(25) + (y^(2))/(16) =...

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  8. A man running round a race course notes that the sum of the distances ...

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  9. P is a variable point on the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1...

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  10. The sides of the rectangle of greatest area that can be inscribed in t...

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  11. The equation x^(2)/(r-2)+y^(2)/(5-r)= 1 represents an ellipse if

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  12. Let E be the ellipse x^(2)//9+y^(2)//4=1 and C be the circle x^(2)+y^(...

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  13. The equation of the circle passing through the foci of the ellipse x^(...

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  14. The equation of the tangent to the ellipse 3x^(2)+2y^(2)=30 at (-2, 3)...

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  15. The equation of the normal to the ellipse x^(2)/4+y^(2)/1=1 at (2, -1)...

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  16. The equations of the tangents to the ellipse 3x^(2)+4y^(2)=12 which ar...

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

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  18. The equations of the tangents to the ellipse 9x^(2)+16y^(2)=144 at the...

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

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  20. If x+ky-5=0 is a tangent to the ellipse 4x^(2)+9y^(2)=20 then k =

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