Let S1,S2 are foci of an ellipse, whose major axis length is 15 units – InterviewSolution

1.	Let S1,S2 are foci of an ellipse, whose major axis length is 15 units and P be any point on the ellipse such that perimeter of triangle PS1S2 is 20 units. If e is the eccentricity of the ellipse, then 3e=
Answer» Let $S_{1}, S_{2}$ are foci of an ellipse, whose major axis length is $15$ units and $P$ be any point on the ellipse such that perimeter of triangle $P S_{1} S_{2}$ is $20$ units. If $e$ is the eccentricity of the ellipse, then $3 e =$

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