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Mathematics · 2017
JEE Main 2017 · 2017-04-02 Offline · Q80
The eccentricity of an ellipse whose centre is at the origin is 1/2. If one of its directrices is x=-4, then the equation of the normal to it at (1,…
The eccentricity of an ellipse whose centre is at the origin is $\displaystyle \frac{1}{2}$. If one of its directrices is $\displaystyle x=-4$, then the equation of the normal to it at $\displaystyle \left(1, \frac{3}{2}\right)$ is :
Official answer
(1)
$\displaystyle 4 x-2 y=1$
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JEE Main 2017 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.