Mathematics · JEE | CONIC SECTIONS

What is the eccentricity \( e \) of an ellipse in terms of \( c \) and \( a \)?

1. A
   \( e = \frac{a}{c} \)
2. B
   \( e = \frac{c}{a} \)
3. C
   \( e = \frac{b}{a} \)
4. D
   \( e = \frac{c}{b} \)