Let E be the ellipse x 2 16 + y 2 9 = 1 . For any three distinct points P , Q and Q ' on E , let M P , Q…

Let E be the ellipse x216+y29=1. For any three distinct points P,Q and Q' on E, let MP,Q be the mid-point of the line segment joining P and Q, and MP,Q' be the mid-point of the line segment joining P and Q'. Then the maximum possible value of the distance between MP,Q and MP,Q', as P,Q and Q' vary on E, is _____.

Solution

.

In a triangle sides joining the mid-points of two sides is half and parallel to third side

M1M2=12QQ'

Maximum value of QQ' is AA'

Hence, maximum value of M1M2=12AA'=4

 

Asked in: JEE Advanced 2021 (Paper 2)

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