The eccentricity of an ellipse whose centre is at the origin is

MATHEMATICS · Single correct · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

The eccentricity of an ellipse whose centre is at the origin is 1/21/2. If one of its directrices is x=−4x = -4, then the equation of the normal to it at (1,3/2)(1, 3/2) is (1) x+2y=4x + 2y = 4 (2) 2y−x=22y - x = 2 (3) 4x−2y=14x - 2y = 1 (4) 4x+2y=74x + 2y = 7

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