noahbertella noahbertella

26-08-2017
Mathematics

contestada

Find the constant sum for an ellipse with foci F1 (0, -12), F2 (0, 12) and the point on the ellipse (9, 0).

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coolstick coolstick

26-08-2017

sqrt((0-9)^2+(-12-0)^2)+sqrt((0-9)^2+(12-0)^2) using the distance formula equals sqrt(81+144)+sqrt(225)=15+15=30

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