Answer and explanation

Correct answer: B.

  1. Step 1: For a hyperbola, and .
  2. Step 2: Relate focal length : .
  3. Step 3: Eccentricity formula: .
Answer
5/4.
Why not the others: '' divides by instead of ; '' uses ellipse formula ; '' inverts the ratio ().

Practise more Vectors, Calculus, Analytical Geometry and Probability Distributions.

Free questions with an explanation for every one, and full timed Saudi Secondary School Certificate mock tests.