Asked by Paula
what is the equation of the ellipse with goci at (0,-4) and (0,4) and the sum of its focal radii being 10?
Answers
Answered by
Reiny
The major axis will be along the y-axis
with c = 4, 2a = 10
a = 5
by Pythagoras for this ellipse, b = 5
so ...
x^2/9 + y^2/25 = 1
with c = 4, 2a = 10
a = 5
by Pythagoras for this ellipse, b = 5
so ...
x^2/9 + y^2/25 = 1
Answered by
herbgeorge
Goci=foci, the plural of focus.
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