A) 10
B) 9
C) 41
D) 18
Correct Answer: A
Solution :
For any point P on the ellipse have focus S and S¢ \[SP+{S}'P=2a\] \ For \[\frac{{{x}^{2}}}{25}+\frac{{{y}^{2}}}{16}=1\] Sum of focal distances = 2 ´ 5 = 10.You need to login to perform this action.
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