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The eccentricity of an ellipse whose cen...

The eccentricity of an ellipse whose centre is at the origin is `1/2dot` if one of its directrices is `x=-4,` then the equation of the normal to it at `(1,3/2)` is: `4x+2y=7` (2) `x+2y=4` (3) `2y-x=2` (4) `4x-2y=1`

A

x + 2y = 4

B

2y - x = 2

C

4x - 2y = 1

D

4x + 2y = 7

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The correct Answer is:
C
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DISHA PUBLICATION-APPLICATION OF DERIVATIVES -EXERCISE - 2
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