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 be the ellipse . For any three distinct points and on , let be the mid-point of the line segment joining and , and be the mid-point of the line segment joining and . Then the maximum possible value of the distance between and , as and vary on , is _____.
Solution
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In a triangle sides joining the mid-points of two sides is half and parallel to third side