If the eccentric angles of the extremeties of a focal chord (other than the major axis) of the ellipse…

If the eccentric angles of the extremeties of a focal chord (other than the major axis) of the ellipse $\frac{x^2}{25}+\frac{y^2}{9}=1$ are $\alpha$ and $\beta$ then $\frac{\cot \left(\frac{\alpha}{2}\right)}{\tan \left(\frac{\beta}{2}\right)}=$
  1. $\frac{4}{3}$
  2. -9
  3. 9
  4. $\frac{4}{5}$

Solution

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Asked in: AP EAMCET 2017 (26 Apr Shift 2)

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