The ellipse x^2/a^2+y^2/b^2=1,(a gt b) p...

The ellipse `x^2/a^2+y^2/b^2=1,(a gt b)` passes through `(2,3)` and have eccentricity equal to `1/2`. Then find the equation of normal to the ellipse at `(2,3)`.

2y-x=4

2x-y=1

3x-2y=0

3x-y=3

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