The eccentricity of an ellipse whose length of latus rectum is equal to distance between its foci, is
The eccentricity of an ellipse whose length of latus rectum is equal to distance between its foci, is
- A
$2\,sin\,18^o$
- B
$2\,cos\,36^o$
- C
$sin\,18^o$
- D
$cos\,36^o$
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