alexr5245 alexr5245

06-04-2024
Mathematics

contestada

The equation of the ellipse whose focus is (1, –1), the directrix the line x – y – 3 = 0 and eccentricity 1/2 is
A. 7x² + 2xy + 7y² – 10x + 10y + 7 = 0
B. 7x² + 2xy + 7y² + 7 = 0
C. 7x² + 2xy + 7y² + 10x – 10y – 7 = 0
D. none

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