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NEST2011MathematicsEllipse

Let O be the origin and let A, C be the intersection points of the ellipse x^2 4 + y^2 3 =1 with the x -axis and B, D be with y -axis such that A, B, C, D are in anti-clockwise direction. Let K, L be the foci of the ellipse such that K lies between A and O , and L between O and C . Then

Options

  1. AD L is the median of the triangle D O C .
  2. Btriangle D K L is equilateral.
  3. CK D C=90^
  4. DD L bisects K D C .

Correct answer

B. triangle D K L is equilateral.

Step-by-step solution

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