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NEST2013MathematicsParabola

If a line segment is the latus rectum of the parabola y^2=4 c x and also a latus rectum of the ellipse x^2 a^2 + y^2 b^2 =1,(a, b, c 0) , then the eccentricity of the ellipse is

Options

  1. A2 -1
  2. B1 2
  3. C1 c
  4. Dnot obtainable from the data.

Correct answer

A. 2 -1

Step-by-step solution

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