If the length of the minor axis of an ellipse is equal to half of the distance between the foci, then the eccentricity of the ellipse is :
Solution
<p>$$\begin{aligned}
& 2 b=a e \\
& \frac{b}{a}=\frac{e}{2} \\
& e=\sqrt{1-\frac{e^2}{4}} \\
& e=\frac{2}{\sqrt{5}}
\end{aligned}$$</p>
About this question
Subject: Mathematics · Chapter: Conic Sections · Topic: Parabola
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