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If P (pi/4) is any point on the ellipse ...

If P `(pi/4)` is any point on the ellipse `9x^2 +25y^2=225`. S and S' are its foci then `SP*S'P=`

A

13

B

14

C

17

D

19

Text Solution

Verified by Experts

The correct Answer is:
C
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