Find the equation of an ellipse whose focus is

MATHEMATICS · Subjective · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

Find the equation of an ellipse whose focus is (−1,1)(-1, 1), eccentricity is 12\frac{1}{2} and the directrix isx−y+3=0.x - y + 3 = 0.

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