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In an ellipse, the distance between its foci is 6 and minor axis is 8. Then its eccentricity is

Options

  1. A3 5
  2. B1 2
  3. C4 5
  4. D1 5

Correct answer

A. 3 5

Step-by-step solution

2 a e=6 a e=32 b=8 b=4b^2=a^2 (1-e^2 )16=a^2-a^2 e^2a^2=16+9=25a=5 e= 3 a = 3 5

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