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If S and S' are the foci of the ellipse ...

If S and S' are the foci of the ellipse `(x^(2))/( 25)+ ( y^(2))/( 16) =1 ` , and P is any point on it then range of values of `SP.S'P` is

A

` 9 le f (theta) le 16`

B

` 9 le f (theta ) le 25`

C

` 16 le f (theta) le 25`

D

` 1 le f(theta) le 16`

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The correct Answer is:
C
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AAKASH SERIES-REVISION EXERCISE -ELLIPSE
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  15. If the curves (x^(2))/(alpha)+(y^(2))/(4)=1 and y^(3)=16x intresect a...

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  17. If OB is the semi-minor axis of an ellipse , F1 and F2 are its foci an...

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