Find the equation to the ellipse whose one focus is `(2, 1)`, the directrix is `2x-y+3=0`
Channel: Doubtnut
Date: 12/04/2020

Find the equation to the ellipse whose one focus is `(2, 1)`, the directrix is `2x-y+3=0` and the eccentricity is `1/sqrt(2)`.