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Solve the question in photo

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Asked by Vidushi412 4th April 2019, 12:22 PM
Answered by Expert
Answer:
Distance between foci = 2 a e  ..................(1)
 
where 2a is length of major axis and e is eccentricity
 
if S1 and S2 are foci and P is any point on ellipse, then S1P + S2P = 2 a   .............................(2)
 
Hence perimeter,   ( 2 a ) + ( 2 a e ) = 10 + 10 e = 15   or  e = 0.5
Answered by Expert 4th April 2019, 2:53 PM
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Tags: ellipse
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